/**
* Copyright © 2012 Alcatel-Lucent.
*
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
* Licensed to you 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.alu.e3;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.nio.channels.FileChannel;
import java.util.Iterator;
import java.util.List;
import com.alu.e3.common.logging.CategoryLogger;
import com.alu.e3.common.tools.CommonTools;
import com.alu.e3.data.model.Instance;
import com.alu.e3.installer.NonExistingManagerException;
public class Utilities {
public static String getStackTrace(Throwable throwable) {
Writer writer = new StringWriter();
PrintWriter printWriter = new PrintWriter(writer);
throwable.printStackTrace(printWriter);
return writer.toString();
}
public static void copyFile(File srcFile, File dstFile, boolean overwrite) throws IOException {
// preconditions check
if(dstFile.isDirectory())
throw new IOException("copyFile: destination is a directory: " + dstFile.getAbsolutePath());
if(dstFile.exists() && !overwrite)
throw new IOException("copyFile: destination file already exists: " + dstFile.getAbsolutePath());
FileChannel srcChannel = null;
FileChannel dstChannel = null;
try {
srcChannel = new FileInputStream(srcFile).getChannel();
dstChannel = new FileOutputStream(dstFile).getChannel();
long transfered = 0;
long size = srcChannel.size();
while ((transfered += srcChannel.transferTo(0, size-transfered, dstChannel)) < size);
} finally {
if(srcChannel != null)
srcChannel.close();
if(dstChannel != null)
dstChannel.close();
}
}
/**
* Method getManagerByIP
* @param managerHostName the manager's host name
* @param managerIP the manager's ip adress
* @param topology
* @param logger
* @return Instance the manager of that ip if existing
* @throws NonExistingManagerException thrown if parameter is no valid ip
*/
public static Instance getManagerByIP(String managerHostName, String managerIP, List<Instance> instances, final CategoryLogger logger) throws NonExistingManagerException {
boolean found = false;
Iterator<Instance> iter = instances.iterator();
Instance manager = null;
logger.debug("Calling getManagerByIP with hostName='{}' and ip='{}'", managerHostName, managerIP);
while (!found && iter.hasNext()) {
Instance currentInstance = iter.next();
String currentIP = currentInstance.getInternalIP();
if (currentIP == null) {
logger.warn("Encountered instance in topology with null internal IP: {}", currentInstance);
continue;
}
logger.debug("Comparing manager ip '{}' with current instance internal ip '{}'", managerIP, currentIP);
//instance internal ip has to match manager ip or manager hostname (allows to work with both)
//for AIB install, the internalIP for the manager is "localhost", so also check for case when manager is localhost
if (currentIP.equals(managerIP) || currentIP.equals(managerHostName) ||
(CommonTools.isLocal(managerIP) && CommonTools.isLocal(currentIP))) {
found = true;
manager = currentInstance;
}
}
if (!found) { //this manager ip does not exist
if(logger.isErrorEnabled()) {
logger.error("No manager with ip '" + managerIP + "' found");
}
throw new NonExistingManagerException("No manager with ip '" + managerIP + "' or hostname '" + managerHostName + "' found");
}
return manager;
}
}