/*
* ====================================================================
* Copyright (c) 2004-2010 TMate Software Ltd. All rights reserved.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://svnkit.com/license.html
* If newer versions of this license are posted there, you may use a
* newer version instead, at your option.
* ====================================================================
*/
package org.exist.versioning.svn.internal.wc;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.TreeSet;
import org.tmatesoft.svn.core.SVNErrorCode;
import org.tmatesoft.svn.core.SVNErrorMessage;
import org.tmatesoft.svn.core.SVNException;
import org.tmatesoft.svn.core.SVNProperties;
import org.tmatesoft.svn.core.SVNPropertyValue;
import org.tmatesoft.svn.core.internal.wc.ISVNPropertyComparator;
import org.tmatesoft.svn.util.SVNLogType;
/**
* @version 1.3
* @author TMate Software Ltd.
*/
public class SVNWCProperties {
public static final String SVN_HASH_TERMINATOR = "END";
private File myFile;
private String myPath;
public SVNWCProperties(File properitesFile, String path) {
myFile = properitesFile;
myPath = path;
}
public File getFile() {
return myFile;
}
public String getPath() {
return myPath;
}
public Collection properties(Collection target) throws SVNException {
target = target == null ? new TreeSet() : target;
if (isEmpty()) {
return target;
}
ByteArrayOutputStream nameOS = new ByteArrayOutputStream();
InputStream is = SVNFileUtil.openFileForReading(getFile(), SVNLogType.WC);
try {
while (readProperty('K', is, nameOS)) {
target.add(new String(nameOS.toByteArray(), "UTF-8"));
nameOS.reset();
readProperty('V', is, null);
}
} catch (IOException e) {
SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.IO_ERROR, e.getLocalizedMessage());
SVNErrorManager.error(err, e, SVNLogType.WC);
} finally {
SVNFileUtil.closeFile(is);
}
return target;
}
public SVNProperties asMap() throws SVNException {
SVNProperties result = new SVNProperties();
if (isEmpty()) {
return result;
}
ByteArrayOutputStream nameOS = new ByteArrayOutputStream();
InputStream is = SVNFileUtil.openFileForReading(getFile(), SVNLogType.WC);
try {
while (readProperty('K', is, nameOS)) {
String name = new String(nameOS.toByteArray(), "UTF-8");
nameOS.reset();
readProperty('V', is, nameOS);
byte[] value = nameOS.toByteArray();
result.put(name, value);
nameOS.reset();
}
} catch (IOException e) {
SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.IO_ERROR, "Cannot read properties file ''{0}'': {1}", new Object[] {getFile(), e.getLocalizedMessage()});
SVNErrorManager.error(err, e, SVNLogType.WC);
} finally {
SVNFileUtil.closeFile(is);
}
return result;
}
public boolean compareTo(SVNWCProperties properties,
ISVNPropertyComparator comparator) throws SVNException {
boolean equals = true;
Collection props1 = properties(null);
Collection props2 = properties.properties(null);
// missed in props2.
Collection tmp = new TreeSet(props1);
tmp.removeAll(props2);
for (Iterator props = tmp.iterator(); props.hasNext();) {
String missing = (String) props.next();
comparator.propertyDeleted(missing);
equals = false;
}
// added in props2.
tmp = new TreeSet(props2);
tmp.removeAll(props1);
File tmpFile = null;
File tmpFile1 = null;
File tmpFile2 = null;
OutputStream os = null;
InputStream is = null;
InputStream is1 = null;
InputStream is2 = null;
for (Iterator props = tmp.iterator(); props.hasNext();) {
String added = (String) props.next();
try {
tmpFile = SVNFileUtil.createUniqueFile(getFile().getParentFile(), getFile().getName(), ".tmp", true);
os = SVNFileUtil.openFileForWriting(tmpFile);
properties.getPropertyValue(added, os);
SVNFileUtil.closeFile(os);
is = SVNFileUtil.openFileForReading(tmpFile, SVNLogType.WC);
comparator.propertyAdded(added, is, (int) tmpFile.length());
equals = false;
SVNFileUtil.closeFile(is);
} finally {
if (tmpFile != null) {
tmpFile.delete();
}
SVNFileUtil.closeFile(os);
SVNFileUtil.closeFile(is);
tmpFile = null;
is = null;
os = null;
}
}
// changed in props2
props2.retainAll(props1);
for (Iterator props = props2.iterator(); props.hasNext();) {
String changed = (String) props.next();
try {
tmpFile1 = SVNFileUtil.createUniqueFile(getFile().getParentFile(), getFile().getName(), ".tmp1", true);
tmpFile2 = SVNFileUtil.createUniqueFile(getFile().getParentFile(), getFile().getName(), ".tmp2", true);
os = SVNFileUtil.openFileForWriting(tmpFile1);
getPropertyValue(changed, os);
os.close();
os = SVNFileUtil.openFileForWriting(tmpFile2);
properties.getPropertyValue(changed, os);
os.close();
if (tmpFile2.length() != tmpFile1.length()) {
is = SVNFileUtil.openFileForReading(tmpFile2, SVNLogType.WC);
comparator.propertyChanged(changed, is, (int) tmpFile2
.length());
equals = false;
SVNFileUtil.closeFile(is);
} else {
is1 = SVNFileUtil.openFileForReading(tmpFile1, SVNLogType.WC);
is2 = SVNFileUtil.openFileForReading(tmpFile2, SVNLogType.WC);
boolean differs = false;
for (int i = 0; i < tmpFile1.length(); i++) {
if (is1.read() != is2.read()) {
differs = true;
break;
}
}
SVNFileUtil.closeFile(is1);
SVNFileUtil.closeFile(is2);
if (differs) {
is2 = SVNFileUtil.openFileForReading(tmpFile2, SVNLogType.WC);
comparator.propertyChanged(changed, is2, (int) tmpFile2
.length());
equals = false;
SVNFileUtil.closeFile(is2);
}
}
} catch (IOException e) {
SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.IO_ERROR, e.getLocalizedMessage());
SVNErrorManager.error(err, e, SVNLogType.WC);
} finally {
if (tmpFile2 != null) {
tmpFile2.delete();
}
if (tmpFile1 != null) {
tmpFile1.delete();
}
SVNFileUtil.closeFile(os);
SVNFileUtil.closeFile(is);
SVNFileUtil.closeFile(is1);
SVNFileUtil.closeFile(is2);
os = null;
tmpFile1 = tmpFile2 = null;
is = is1 = is2 = null;
}
}
return equals;
}
public String getPropertyValue(String name) throws SVNException {
if (isEmpty()) {
return null;
}
ByteArrayOutputStream os = new ByteArrayOutputStream();
os = (ByteArrayOutputStream) getPropertyValue(name, os);
if (os != null && os.size() >= 0) {
byte[] bytes = os.toByteArray();
try {
return new String(bytes, "UTF-8");
} catch (UnsupportedEncodingException e) {
return new String(bytes);
}
}
return null;
}
public OutputStream getPropertyValue(String name, OutputStream os) throws SVNException {
if (isEmpty()) {
return null;
}
ByteArrayOutputStream nameOS = new ByteArrayOutputStream();
InputStream is = SVNFileUtil.openFileForReading(getFile(), SVNLogType.WC);
try {
while (readProperty('K', is, nameOS)) {
String currentName = new String(nameOS.toByteArray(), "UTF-8");
nameOS.reset();
if (currentName.equals(name)) {
readProperty('V', is, os);
return os;
}
readProperty('V', is, null);
}
} catch (IOException e) {
SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.IO_ERROR, e.getLocalizedMessage());
SVNErrorManager.error(err, e, SVNLogType.WC);
} finally {
SVNFileUtil.closeFile(is);
}
return null;
}
public void setPropertyValue(String name, SVNPropertyValue value) throws SVNException {
byte[] bytes = SVNPropertyValue.getPropertyAsBytes(value);
int length = bytes != null && bytes.length >= 0 ? bytes.length : -1;
setPropertyValue(name, bytes != null ? new ByteArrayInputStream(bytes) : null, length);
}
public void setPropertyValue(String name, InputStream is, int length)
throws SVNException {
InputStream src = null;
OutputStream dst = null;
File tmpFile = null;
boolean empty = false;
try {
tmpFile = SVNFileUtil.createUniqueFile(getFile().getParentFile(), getFile().getName(), ".tmp", true);
if (!isEmpty()) {
src = SVNFileUtil.openFileForReading(getFile(), SVNLogType.WC);
}
dst = SVNFileUtil.openFileForWriting(tmpFile);
empty = !copyProperties(src, dst, name, is, length);
} finally {
SVNFileUtil.closeFile(src);
SVNFileUtil.closeFile(dst);
}
if (tmpFile != null) {
if (!empty) {
SVNFileUtil.rename(tmpFile, getFile());
SVNFileUtil.setReadonly(getFile(), true);
} else {
SVNFileUtil.deleteFile(tmpFile);
SVNFileUtil.deleteFile(getFile());
}
}
}
public void setProperties(SVNProperties properties) throws SVNException {
if (properties != null) {
for (Iterator names = properties.nameSet().iterator(); names.hasNext();) {
String name = (String) names.next();
SVNPropertyValue value = properties.getSVNPropertyValue(name);
setPropertyValue(name, value);
}
}
}
public SVNProperties compareTo(SVNWCProperties properties) throws SVNException {
final SVNProperties locallyChangedProperties = new SVNProperties();
compareTo(properties, new ISVNPropertyComparator() {
public void propertyAdded(String name, InputStream value, int length) {
propertyChanged(name, value, length);
}
public void propertyChanged(String name, InputStream newValue,
int length) {
ByteArrayOutputStream os = new ByteArrayOutputStream(length);
for (int i = 0; i < length; i++) {
try {
os.write(newValue.read());
} catch (IOException e) {
}
}
byte[] bytes = os.toByteArray();
try {
locallyChangedProperties.put(name, new String(bytes, "UTF-8"));
} catch (UnsupportedEncodingException e) {
locallyChangedProperties.put(name, new String(bytes));
}
}
public void propertyDeleted(String name) {
locallyChangedProperties.put(name, (SVNPropertyValue) null);
}
});
return locallyChangedProperties;
}
public static void setProperties(SVNProperties namesToValues, File target, File tmpFile, String terminator) throws SVNException {
OutputStream dst = null;
try {
if (tmpFile != null) {
tmpFile.getParentFile().mkdirs();
} else {
target.getParentFile().mkdirs();
}
dst = SVNFileUtil.openFileForWriting(tmpFile != null ? tmpFile : target);
setProperties(namesToValues, dst, terminator);
} finally {
SVNFileUtil.closeFile(dst);
}
if (tmpFile != null && target != null) {
target.getParentFile().mkdirs();
SVNFileUtil.rename(tmpFile, target);
}
if (target != null) {
SVNFileUtil.setReadonly(target, true);
}
}
public static void setProperties(SVNProperties namesToValues, OutputStream target, String terminator) throws SVNException {
try {
Object[] keys = namesToValues.nameSet().toArray();
Arrays.sort(keys);
for (int i = 0; i < keys.length; i++) {
String propertyName = (String) keys[i];
writeProperty(target, 'K', propertyName.getBytes("UTF-8"));
writeProperty(target, 'V', SVNPropertyValue.getPropertyAsBytes(namesToValues.getSVNPropertyValue(propertyName)));
}
if (terminator != null) {
target.write(terminator.getBytes("UTF-8"));
target.write('\n');
}
} catch (IOException ioe) {
SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.IO_ERROR, ioe.getLocalizedMessage());
SVNErrorManager.error(err, ioe, SVNLogType.WC);
}
}
public static void appendProperty(String name, SVNPropertyValue value, OutputStream target) throws SVNException {
if (name == null || value == null){
return;
}
byte[] bytes = SVNPropertyValue.getPropertyAsBytes(value);
try {
writeProperty(target, 'K', name.getBytes("UTF-8"));
writeProperty(target, 'V', bytes);
}catch(IOException ioe){
SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.IO_ERROR, ioe.getLocalizedMessage());
SVNErrorManager.error(err, ioe, SVNLogType.WC);
}
}
public static void appendPropertyDeleted(String name, OutputStream target) throws SVNException {
if(name == null){
return;
}
try {
writeProperty(target, 'D', name.getBytes("UTF-8"));
}catch(IOException ioe){
SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.IO_ERROR, ioe.getLocalizedMessage());
SVNErrorManager.error(err, ioe, SVNLogType.WC);
}
}
/** @noinspection ResultOfMethodCallIgnored */
private static boolean copyProperties(InputStream is, OutputStream os,
String name, InputStream value, int length) throws SVNException {
// read names, till name is met, then insert value or skip this
// property.
int propCount = 0;
try {
if (is != null) {
int l = 0;
while ((l = readLength(is, 'K')) > 0) {
byte[] nameBytes = new byte[l];
SVNFileUtil.readIntoBuffer(is, nameBytes, 0, nameBytes.length);
is.read();
if (name.equals(new String(nameBytes, "UTF-8"))) {
// skip property, will be appended.
readProperty('V', is, null);
continue;
}
// save name
writeProperty(os, 'K', nameBytes);
l = readLength(is, 'V');
writeProperty(os, 'V', is, l);
is.read();
propCount++;
}
}
if (value != null && length >= 0) {
byte[] nameBytes = name.getBytes("UTF-8");
writeProperty(os, 'K', nameBytes);
writeProperty(os, 'V', value, length);
propCount++;
}
if (propCount > 0) {
os.write(new byte[] { 'E', 'N', 'D', '\n' });
}
} catch (IOException e) {
SVNErrorMessage err = SVNErrorMessage.create(SVNErrorCode.IO_ERROR, e.getLocalizedMessage());
SVNErrorManager.error(err, e, SVNLogType.WC);
}
return propCount > 0;
}
private static boolean readProperty(char type, InputStream is, OutputStream os) throws IOException {
int length = readLength(is, type);
if (length < 0) {
return false;
}
if (os != null) {
byte[] value = new byte[length];
int r = SVNFileUtil.readIntoBuffer(is, value, 0, value.length);
if (r >= 0) {
os.write(value, 0, r);
} else {
return false;
}
} else {
while(length > 0) {
length -= is.skip(length);
}
}
return is.read() == '\n';
}
private static void writeProperty(OutputStream os, char type, byte[] value)
throws IOException {
os.write((byte) type);
os.write(' ');
os.write(Integer.toString(value.length).getBytes("UTF-8"));
os.write('\n');
os.write(value);
os.write('\n');
}
private static void writeProperty(OutputStream os, char type,
InputStream value, int length) throws IOException {
os.write((byte) type);
os.write(' ');
os.write(Integer.toString(length).getBytes("UTF-8"));
os.write('\n');
for (int i = 0; i < length; i++) {
int r = value.read();
os.write(r);
}
os.write('\n');
}
private static int readLength(InputStream is, char type) throws IOException {
byte[] buffer = new byte[255];
int r = SVNFileUtil.readIntoBuffer(is, buffer, 0, 4);
if (r != 4) {
throw new IOException("invalid properties file format");
}
// either END\n or K x\n
if (buffer[0] == 'E' && buffer[1] == 'N' && buffer[2] == 'D' && buffer[3] == '\n') {
return -1;
} else if (buffer[0] == type && buffer[1] == ' ') {
int i = 4;
if (buffer[3] != '\n') {
while (true) {
int b = is.read();
if (b < 0) {
throw new IOException("invalid properties file format");
} else if (b == '\n') {
break;
}
buffer[i] = (byte) (0xFF & b);
i++;
}
} else {
i = 3;
}
String length = new String(buffer, 2, i - 2, "UTF-8");
return Integer.parseInt(length.trim());
}
throw new IOException("invalid properties file format");
}
public boolean isEmpty() {
return !getFile().exists() || getFile().length() <= 4;
}
}