added support for extracting micro logs
This commit is contained in:
parent
8acea82207
commit
9d030cad2c
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@ -28,7 +28,7 @@
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: CoffeeConfiguration.java,v 1.1 2009/08/04 10:36:53 nvt-se Exp $
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* $Id: CoffeeConfiguration.java,v 1.2 2009/08/10 12:51:52 nvt-se Exp $
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*
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* @author Nicolas Tsiftes
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*
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@ -63,8 +63,8 @@ public class CoffeeConfiguration {
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new FileInputStream(filename);
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prop.load(fstream);
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for(int i = 0; i < validParameters.length; i++) {
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if(prop.getProperty(validParameters[i]) == null) {
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for (int i = 0; i < validParameters.length; i++) {
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if (prop.getProperty(validParameters[i]) == null) {
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throw new CoffeeException("missing the parameter \"" + validParameters[i] + "\" in the configuration file " + filename);
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}
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}
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@ -28,7 +28,7 @@
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: CoffeeFS.java,v 1.3 2009/08/04 15:19:08 nvt-se Exp $
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* $Id: CoffeeFS.java,v 1.4 2009/08/10 12:51:52 nvt-se Exp $
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*
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* @author Nicolas Tsiftes
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*
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@ -67,7 +67,7 @@ public class CoffeeFS {
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while(currentPage < (conf.fsSize / conf.pageSize)) {
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CoffeeHeader header = readHeader(currentPage);
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if(header.isActive()) {
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if (header.isActive() && !header.isLog()) {
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CoffeeFile file = new CoffeeFile(this, header);
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files.put(file.getName(), file);
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}
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@ -87,12 +87,12 @@ public class CoffeeFS {
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while(currentPage < (conf.fsSize / conf.pageSize)) {
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header = readHeader(currentPage);
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if(header.isFree()) {
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if(start == INVALID_PAGE) {
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if (header.isFree()) {
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if (start == INVALID_PAGE) {
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start = currentPage;
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}
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currentPage = nextFile(header, currentPage);
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if(start + pages <= currentPage) {
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if (start + pages <= currentPage) {
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return start;
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}
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} else {
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@ -111,7 +111,7 @@ public class CoffeeFS {
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return conf;
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}
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private CoffeeHeader readHeader(int page) throws IOException {
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public CoffeeHeader readHeader(int page) throws IOException {
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byte[] bytes = new byte[conf.NAME_LENGTH + conf.pageTypeSize * 2 + 6];
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int index = 0;
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@ -121,16 +121,16 @@ public class CoffeeFS {
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return header;
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}
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private void writeHeader(CoffeeHeader header) throws IOException {
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public void writeHeader(CoffeeHeader header) throws IOException {
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byte[] bytes = header.toRawHeader();
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image.write(bytes, bytes.length, header.getPage() * conf.pageSize);
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}
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private int nextFile(CoffeeHeader header, int page) {
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if(header.isFree()) {
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if (header.isFree()) {
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return page + conf.pagesPerSector & ~(conf.pagesPerSector - 1);
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} else if(header.isIsolated()) {
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} else if (header.isIsolated()) {
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return page + 1;
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}
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@ -149,7 +149,7 @@ public class CoffeeFS {
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int allocatePages = pageCount(file.length());
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int start = findFreeExtent(allocatePages);
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if(start == INVALID_PAGE) {
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if (start == INVALID_PAGE) {
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return null;
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}
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CoffeeHeader header = new CoffeeHeader(this, start);
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@ -169,7 +169,7 @@ public class CoffeeFS {
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public void removeFile(String filename)
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throws CoffeeFileException, IOException {
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CoffeeFile file = files.get(filename);
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if(file == null) {
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if (file == null) {
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throw new CoffeeFileException("Coffee: attempt to remove inexistent file");
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}
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@ -181,7 +181,7 @@ public class CoffeeFS {
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public boolean extractFile(String filename) throws IOException {
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CoffeeFile file = files.get(filename);
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if(file == null) {
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if (file == null) {
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return false;
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}
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@ -28,7 +28,7 @@
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: CoffeeFile.java,v 1.2 2009/08/04 10:39:13 nvt-se Exp $
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* $Id: CoffeeFile.java,v 1.3 2009/08/10 12:51:52 nvt-se Exp $
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*
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* @author Nicolas Tsiftes
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*
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@ -39,30 +39,36 @@ package se.sics.coffee;
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import java.io.*;
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public class CoffeeFile {
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private CoffeeFS coffeeFS;
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private CoffeeHeader header;
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protected CoffeeFS coffeeFS;
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protected CoffeeHeader header;
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private String name;
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private int length;
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private int startPage;
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private int reservedSize;
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private CoffeeFile logFile;
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private CoffeeMicroLog microLog;
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private boolean knownLength;
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public CoffeeFile(CoffeeFS coffeeFS, CoffeeHeader header) {
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public CoffeeFile(CoffeeFS coffeeFS, CoffeeHeader header) throws IOException {
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this.coffeeFS = coffeeFS;
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this.header = header;
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name = header.name;
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startPage = header.getPage();
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reservedSize = header.maxPages * coffeeFS.getConfiguration().pageSize;
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if (header.isModified() &&
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coffeeFS.getConfiguration().useMicroLogs == true) {
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microLog = new CoffeeMicroLog(coffeeFS, coffeeFS.readHeader(header.logPage));
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} else {
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microLog = null;
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}
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}
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private int calculateLength() throws IOException {
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byte[] bytes = new byte[1];
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int i;
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for(i = reservedSize; i >= header.rawLength(); i--) {
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for (i = reservedSize; i >= header.rawLength(); i--) {
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coffeeFS.getImage().read(bytes, 1, header.getPage() * coffeeFS.getConfiguration().pageSize + i);
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if(bytes[0] != 0) {
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if (bytes[0] != 0) {
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return i - header.rawLength() + 1;
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}
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}
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@ -89,17 +95,30 @@ public class CoffeeFile {
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}
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public void saveContents(String filename) throws IOException {
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byte[] bytes = new byte[1];
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int startOffset = header.getPage() *
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coffeeFS.getConfiguration().pageSize +
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header.rawLength();
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int i;
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byte[] bytes;
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FileOutputStream fOut = new FileOutputStream(filename);
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for(i = 0; i < getLength(); i++) {
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if(microLog != null) {
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for(i = 0; i < microLog.getLogRecords(); i++) {
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bytes = microLog.getRegion(i);
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if(bytes == null) {
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bytes = new byte[1];
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coffeeFS.getImage().read(bytes, 1, i * microLog.getLogRecordSize());
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}
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fOut.write(bytes);
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}
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} else {
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bytes = new byte[1];
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for (i = 0; i < getLength(); i++) {
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coffeeFS.getImage().read(bytes, 1, startOffset + i);
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fOut.write(bytes);
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}
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}
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fOut.close();
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}
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@ -113,7 +132,7 @@ public class CoffeeFile {
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}
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public int getLength() throws IOException {
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if(!knownLength) {
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if (!knownLength) {
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length = calculateLength();
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knownLength = true;
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}
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: CoffeeHeader.java,v 1.1 2009/08/04 10:36:53 nvt-se Exp $
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* $Id: CoffeeHeader.java,v 1.2 2009/08/10 12:51:52 nvt-se Exp $
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*
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* @author Nicolas Tsiftes
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*
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@ -97,7 +97,7 @@ class CoffeeHeader {
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name = new String(bytes).substring(index,
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index + conf.NAME_LENGTH);
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int nullCharOffset = name.indexOf(0);
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if(nullCharOffset >= 0) {
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if (nullCharOffset >= 0) {
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name = name.substring(0, nullCharOffset);
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}
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}
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@ -105,23 +105,23 @@ class CoffeeHeader {
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private byte composeFlags() {
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byte flags = 0;
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if(valid) {
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if (valid) {
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flags |= HDR_FLAG_VALID;
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}
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if(allocated) {
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if (allocated) {
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flags |= HDR_FLAG_ALLOCATED;
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}
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if(obsolete) {
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if (obsolete) {
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flags |= HDR_FLAG_OBSOLETE;
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}
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if(modified) {
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if (modified) {
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flags |= HDR_FLAG_MODIFIED;
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}
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if(log) {
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if (log) {
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flags |= HDR_FLAG_LOG;
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}
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if(isolated) {
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if (isolated) {
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flags |= HDR_FLAG_ISOLATED;
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}
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}
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private void processFlags(int flags) {
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if((flags & HDR_FLAG_VALID) != 0) {
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if ((flags & HDR_FLAG_VALID) != 0) {
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valid = true;
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}
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if((flags & HDR_FLAG_ALLOCATED) != 0) {
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if ((flags & HDR_FLAG_ALLOCATED) != 0) {
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allocated = true;
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}
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if((flags & HDR_FLAG_OBSOLETE) != 0) {
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if ((flags & HDR_FLAG_OBSOLETE) != 0) {
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obsolete = true;
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}
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if((flags & HDR_FLAG_MODIFIED) != 0) {
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if ((flags & HDR_FLAG_MODIFIED) != 0) {
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modified = true;
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}
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if((flags & HDR_FLAG_LOG) != 0) {
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if ((flags & HDR_FLAG_LOG) != 0) {
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log = true;
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}
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if((flags & HDR_FLAG_ISOLATED) != 0) {
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if ((flags & HDR_FLAG_ISOLATED) != 0) {
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isolated = true;
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}
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}
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private byte[] setPageValue(int page) {
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byte[] bytes = new byte[conf.pageTypeSize];
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for(int i = conf.pageTypeSize - 1; i >= 0; i--) {
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for (int i = conf.pageTypeSize - 1; i >= 0; i--) {
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bytes[i] = (byte) (page >> (8 * i));
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}
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return bytes;
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private int getPageValue(byte[] bytes, int offset) {
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int page = 0;
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for(int i = 0; i < conf.pageTypeSize; i++) {
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for (int i = 0; i < conf.pageTypeSize; i++) {
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page |= bytes[offset + i] << (8 * i);
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}
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return page;
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@ -28,7 +28,7 @@
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: CoffeeImageFile.java,v 1.1 2009/08/04 10:36:53 nvt-se Exp $
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* $Id: CoffeeImageFile.java,v 1.2 2009/08/10 12:51:52 nvt-se Exp $
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*
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* @author Nicolas Tsiftes
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*
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@ -50,7 +50,7 @@ public class CoffeeImageFile implements CoffeeImage {
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this.conf = conf;
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File file = new File(filename);
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imageFile = new RandomAccessFile(file, "rw");
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if(imageFile.length() == 0) {
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if (imageFile.length() == 0) {
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// Allocate a full file system image.
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imageFile.setLength(conf.fsSize);
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}
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@ -28,7 +28,7 @@
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: CoffeeManager.java,v 1.2 2009/08/04 15:19:08 nvt-se Exp $
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* $Id: CoffeeManager.java,v 1.3 2009/08/10 12:51:52 nvt-se Exp $
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*
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* @author Nicolas Tsiftes
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*
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@ -57,25 +57,25 @@ public class CoffeeManager {
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usage += "[-l|s] ";
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usage += "<file system image>";
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if(args.length < 1) {
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if (args.length < 1) {
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System.err.println(usage);
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System.exit(1);
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}
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if(args.length > 1) {
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if (args.length > 1) {
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Pattern validArg = Pattern.compile("-(i|e|r|l|s)");
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Matcher m = validArg.matcher(args[0]);
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if(!m.matches()) {
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if (!m.matches()) {
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System.err.println(usage);
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System.exit(1);
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}
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if(args[0].equals("-i") || args[0].equals("-e") || args[0].equals("-r")) {
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if(args.length != 3) {
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if (args[0].equals("-i") || args[0].equals("-e") || args[0].equals("-r")) {
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if (args.length != 3) {
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System.err.println(usage);
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System.exit(1);
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}
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if(args[0].equals("-i")) {
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if (args[0].equals("-i")) {
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command = Command.INSERT;
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} else if (args[0].equals("-r")) {
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command = Command.REMOVE;
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@ -85,11 +85,11 @@ public class CoffeeManager {
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filename = args[1];
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fsImage = args[2];
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} else {
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if(args.length != 2) {
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if (args.length != 2) {
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System.err.println(usage);
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System.exit(1);
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}
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if(args[0].equals("-l")) {
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if (args[0].equals("-l")) {
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command = Command.LIST;
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} else {
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command = Command.STATS;
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@ -103,19 +103,19 @@ public class CoffeeManager {
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coffeeFS = new CoffeeFS(new CoffeeImageFile(fsImage, conf));
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switch (command) {
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case INSERT:
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if(coffeeFS.getFiles().get(filename) != null) {
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if (coffeeFS.getFiles().get(filename) != null) {
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System.err.println("error: file \"" +
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filename + "\" already exists");
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break;
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}
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if(coffeeFS.insertFile(filename) != null) {
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if (coffeeFS.insertFile(filename) != null) {
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System.out.println("Inserted the local file \"" +
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filename +
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"\" into the file system image");
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}
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break;
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case EXTRACT:
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if(coffeeFS.extractFile(filename) == false) {
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if (coffeeFS.extractFile(filename) == false) {
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System.err.println("Inexistent file: " +
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filename);
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System.exit(1);
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103
tools/coffee-manager/se/sics/coffee/CoffeeMicroLog.java
Normal file
103
tools/coffee-manager/se/sics/coffee/CoffeeMicroLog.java
Normal file
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@ -0,0 +1,103 @@
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/*
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* Copyright (c) 2009, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
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* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*
|
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* $Id: CoffeeMicroLog.java,v 1.1 2009/08/10 12:51:52 nvt-se Exp $
|
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*
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* @author Nicolas Tsiftes
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*
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*/
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package se.sics.coffee;
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import java.io.IOException;
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public class CoffeeMicroLog extends CoffeeFile {
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private int logRecords;
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private int logRecordSize;
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private int indexStart;
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private int indexSize;
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private int recordStart;
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private int[] index;
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public CoffeeMicroLog(CoffeeFS fs, CoffeeHeader header)
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throws IOException {
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super(fs, header);
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CoffeeConfiguration conf = fs.getConfiguration();
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if (header.logRecordSize == 0) {
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logRecordSize = conf.pageSize;
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}
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int logAreaSize;
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if (header.logRecords == 0) {
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logRecords = conf.defaultLogSize / logRecordSize;
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} else {
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logRecords = header.logRecords;
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}
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indexStart = header.getPage() * conf.pageSize +
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header.rawLength();
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/* An index entry uses two bytes. */
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indexSize = logRecords * 2;
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recordStart = indexStart + indexSize;
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|
||||
index = new int[logRecords];
|
||||
byte[] bytes = new byte[2];
|
||||
|
||||
for (int i = 0; i < logRecords; i++) {
|
||||
coffeeFS.getImage().read(bytes, bytes.length,
|
||||
indexStart + i * 2);
|
||||
index[i] = bytes[1] << 8 | bytes[0];
|
||||
}
|
||||
}
|
||||
|
||||
public byte[] getRegion(int region) throws IOException {
|
||||
int headerSize = header.rawLength();
|
||||
int indexSize = logRecords * 2;
|
||||
|
||||
for(int i = logRecords - 1; i >= 0; i--) {
|
||||
if(index[i] - 1 == region) {
|
||||
byte[] bytes = new byte[logRecordSize];
|
||||
coffeeFS.getImage().read(bytes, bytes.length,
|
||||
recordStart + i * logRecordSize);
|
||||
return bytes;
|
||||
}
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
public int getLogRecords() {
|
||||
return logRecords;
|
||||
}
|
||||
|
||||
public int getLogRecordSize() {
|
||||
return logRecordSize;
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue