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PCTNSBroker.java
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PCTNSBroker.java
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/**
* Copyright 2005-2020 Riverside Software
*
* 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 com.phenix.pct;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.taskdefs.ExecTask;
import org.apache.tools.ant.types.Environment;
/**
* Class managing name servers tasks
*
* @author <a href="mailto:g.querret+PCT@gmail.com">Gilles QUERRET </a>
*/
public class PCTNSBroker extends PCTBroker {
private static final String DEFAULT_NS = "NS1";
private String nameServer = DEFAULT_NS;
private boolean autoStart = false;
private int brokerKeepAliveTimeout = -1;
private boolean logAppend = true;
private File workDir = null;
private File serverLogFile = null;
private int portNumber = -1;
private int serverLogLevel = -1;
private int tmpFileID = -1;
private File tmpFile = null;
/**
* Creates a new PCTNSBroker object. Temp files initialization.
*/
public PCTNSBroker() {
super();
tmpFileID = PCT.nextRandomInt();
tmpFile = new File(System.getProperty(PCT.TMPDIR), "pct_delta" + tmpFileID + ".txt"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
/**
* AutoStart property. Default value is false.
*
* @param autoStart Boolean
*/
public void setAutoStart(boolean autoStart) {
this.autoStart = autoStart;
}
/**
* brokerKeepAliveTimeout property. Default value is 30.
*
* @param brokerKeepAliveTimeout int
*/
public void setBrokerKeepAliveTimeout(int brokerKeepAliveTimeout) {
this.brokerKeepAliveTimeout = brokerKeepAliveTimeout;
}
/**
* LogAppend property. Default value is true.
*
* @param logAppend Boolean
*/
public void setLogAppend(boolean logAppend) {
this.logAppend = logAppend;
}
/**
* Port number (or name).
*
* @param portNumber String
*/
public void setPortNumber(int portNumber) {
this.portNumber = portNumber;
}
/**
* Server log file property. No default value.
*
* @param serverLogFile File
*/
public void setServerLogFile(File serverLogFile) {
this.serverLogFile = serverLogFile;
}
/**
* Server logging level property. No default value. Should be between 1 and 5.
*/
public void setServerLogLevel(int serverLogLevel) {
this.serverLogLevel = serverLogLevel;
}
/**
* Working directory of servers. No default value.
*
* @param workDir File
*/
public void setWorkDir(File workDir) {
this.workDir = workDir;
}
/**
* Controlling name server. Default value is NS1
*
* @param ns String
*/
public void setNameServer(String ns) {
this.nameServer = ns;
}
/**
* Do the work
*
* @throws BuildException Something went wrong
*/
@Override
public void execute() {
File propFile = null;
try {
this.checkAttributes();
// Choosing right properties file
if (this.file == null) {
propFile = new File(this.getDlcHome(), "properties/" + UBROKER_PROPERTIES);
} else {
propFile = new File(this.file);
}
if (!propFile.exists())
throw new BuildException("Unable to find properties file "
+ propFile.getAbsolutePath());
// And do the work
writeDeltaFile();
Task task = getCmdLineMergeTask(propFile, tmpFile);
task.execute();
} finally {
this.cleanup();
}
}
/**
* Write files to be used as a parameter for the MergeProp shell script.
*
* @throws BuildException Something went wrong during write.
*
*/
private void writeDeltaFile() {
try (Writer w = new FileWriter(tmpFile); PrintWriter bw = new PrintWriter(w)) {
bw.println("[NameServer." + this.nameServer + "]");
if (!"delete".equalsIgnoreCase(this.action)) {
bw.println("environment=" + this.name);
bw.println("autoStart=" + (this.autoStart ? "1" : "0"));
bw.println("brokerKeepAliveTimeout=" + this.brokerKeepAliveTimeout);
bw.println("logAppend=" + (this.logAppend ? "1" : "0"));
if (this.portNumber != -1)
bw.println("portNumber=" + this.portNumber);
if (this.serverLogFile != null)
bw.println("srvrLogFile=" + this.serverLogFile);
if (this.serverLogLevel != -1)
bw.println("srvrLoggingLevel=" + this.serverLogLevel);
if (this.workDir != null)
bw.println("workDir=" + this.workDir);
}
} catch (IOException caught) {
throw new BuildException("Unable to create temp file", caught);
}
}
/**
* Creates an Exec task, calling mergeprop shell script.
*/
private Task getCmdLineMergeTask(File propFile, File deltaFile) {
ExecTask task = new ExecTask(this);
task.setDir(this.getProject().getBaseDir());
task.setExecutable(this.getExecPath("mergeprop").getAbsolutePath());
task.setFailonerror(true);
Environment.Variable var4 = new Environment.Variable();
var4.setKey("DLC"); //$NON-NLS-1$
var4.setValue(this.getDlcHome().toString());
task.addEnv(var4);
task.createArg().setValue("-type");
task.createArg().setValue("ubroker");
task.createArg().setValue("-action");
task.createArg().setValue(this.action);
task.createArg().setValue("-target");
task.createArg().setValue(propFile.getAbsolutePath());
task.createArg().setValue("-delta");
task.createArg().setValue(deltaFile.getAbsolutePath());
return task;
}
/**
* Cross-attributes check
*
* @throws BuildException Attributes are wrong...
*/
private void checkAttributes() {
if ((!action.equalsIgnoreCase(UPDATE)) && (!action.equalsIgnoreCase(CREATE))
&& (!action.equalsIgnoreCase(DELETE))) {
throw new BuildException("Unknown action : " + action);
}
if ((serverLogLevel != -1) && ((serverLogLevel < 1) || (serverLogLevel > 5)))
throw new BuildException("Log level should be between 1 and 5");
}
private void cleanup() {
deleteFile(tmpFile);
}
}