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Ignore whitespace Rev 166 → Rev 167

/SVN-ALFEventEmitter/trunk/src/net/brutex/svn/SVNAdminExecutor.java
0,0 → 1,181
/*
* Copyright 2014 Brian Rosenberger (Brutex Network)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.brutex.svn;
 
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
 
import org.apache.log4j.Logger;
 
/* Executes the svnadmin utility
*
* @author Brian Rosenberger bru(at)brutex.de
* @since 0.1
 
*/
public class SVNAdminExecutor {
private Logger logger = Logger.getLogger(SVNAdminExecutor.class);
private final File svnadmin;
private final String repos;
private String rev = null;
private String message = null;
private String locale = "de_DE.UTF-8";
private String encoding = "UTF-8";
private boolean useBypassHooks = true;
/**
* Instantiates a new SVN admin executor.
*
* @param svnadmin the svnadmin
* @param repos the repos
*/
public SVNAdminExecutor(File svnadmin, String repos) {
if(! svnadmin.exists() ) throw new IllegalArgumentException( String.format("The svnadmin executable at '%s' does not exist.", svnadmin.toString()));
if(! svnadmin.isFile() ) throw new IllegalArgumentException( String.format("The svnadmin utility at'%s' is not a file.", svnadmin.toString()));
logger.debug(String.format("Instantiating '%s' with svnadmin at '%s'.", this.getClass().getCanonicalName(), svnadmin.toString()));
this.svnadmin = svnadmin;
logger.debug(String.format("Working against svn repository at '%s'.", repos));
this.repos = repos;
}
 
/**
* Execute svn admin.
*
* @param command the command
* @return the string
*/
public String executeSVNAdmin(SVNAdminCommand command) {
StringBuilder sb = new StringBuilder();
StringBuilder sberr = new StringBuilder();
if(rev==null) {
logger.error("The revision can not be 'null' for the svnadmin command.");
return null;
}
if(message==null) {
logger.error("The new log message can not be 'null' for the svnadmin command.");
return null;
}
File logfile = null;
try {
logfile = File.createTempFile("~msg"+rev+"_", ".tmp");
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(logfile), encoding));
out.write(message);
out.flush();
out.close();
} catch (IOException e) {
logger.error("Failed to write new log message to temporary file '"+logfile.getAbsolutePath()+"'.", e);
return null;
}
 
try {
List<String> cmdline = new ArrayList<String>(5);
cmdline.add(svnadmin.toString());
cmdline.add(command.getValue());
cmdline.add(repos);
if(useBypassHooks) {
cmdline.add("--bypass-hooks");
}
cmdline.add("-r");
cmdline.add(rev);
cmdline.add(logfile.getAbsolutePath());
 
ProcessBuilder pf = new ProcessBuilder(cmdline);
logger.debug(String.format("Executing svnadmin with commandline '%s'.", pf.command()));
Map<String, String> env = pf.environment();
env.put("LANG", locale);
Process svnprocess = pf.start();
BufferedReader stdin = new BufferedReader(new InputStreamReader(svnprocess.getInputStream(), encoding));
BufferedReader stderr = new BufferedReader(new InputStreamReader(svnprocess.getErrorStream(), encoding));
String s;
while( (s = stdin.readLine()) != null ) {
sb.append(s + '\n');
}
while( (s = stderr.readLine()) != null ) {
sberr.append(s + '\n');
}
stdin.close(); stderr.close();
} catch (IOException e) {
logger.error( String.format( "Error calling the svnadmin utility: '%s'", e.getMessage()));
e.printStackTrace();
} finally {
logfile.deleteOnExit();
}
String error = sberr.toString();
if( error.length()>0 ) {
error = "Failed to call svnadmin. The STDERR was '"+error+"'";
logger.error(error);
throw new IllegalArgumentException(error);
}
String output = sb.toString().trim();
logger.debug(String.format("Svnadmin output was '%s'", output));
return output;
}
public void setRev(String rev) {
if(rev==null || rev.length()<=0) throw new IllegalArgumentException("Revision cannot be null or empty.");
this.rev = rev;
}
public void setEncoding(String encoding) {
this.encoding = encoding;
}
/**
* Set the locale that will be pushed into
* 'LANG' environment variable.
*
* @param locale i.e. de_DE.UTF-8
*/
public void setLocale(String locale) {
this.locale = locale;
}
/**
* Set the new log message.
*
* @param message new message
*/
public void setMessage(String message) {
this.message = message;
}
/**
* Set this to true to bypass the pre-revprop-change and post-revprop-change
* hooks.
*
* @param useBypassHooks defaults to true
*/
public void setUseBypassHooks(boolean useBypassHooks) {
this.useBypassHooks = useBypassHooks;
}
 
}
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