/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* 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 org.apache.qpid.commands;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.openmbean.CompositeData;
import org.apache.qpid.commands.objects.QueueObject;
import org.apache.qpid.utils.JMXinfo;
public class Commandviewcontent extends CommandImpl
{
public static final String COMMAND_NAME = "viewcontent";
private long number = 0;
private QueueObject objname;
private MBeanServerConnection mbsc;
private String method1;
private ObjectName queue;
public Commandviewcontent(JMXinfo info)
{
super(info);
this.mbsc = info.getmbserverconnector();
this.objname = new QueueObject(mbsc);
this.method1 = "viewMessageContent";
}
public void viewcontent()
{
objname.setQueryString(getObject(), getName(), getVirtualhost());
Set set = objname.returnObjects();
String temp_header = "", header = "", message_data = "", encoding = null;
if (objname.getSet().size() != 0)
{
Iterator it = set.iterator();
this.queue = (ObjectName) it.next();
try
{
if (objname.getmessagecount(this.queue) == 0)
{
echo("Selected Queue doesn't contain any messages");
return;
}
if (this.number == 0)
{
echo("You haven't selected a MessageId Please use -id and give a message id");
echo("Or run view command with same arguemnts to view messageId list for the queue");
}
else
{
Object[] params = { this.number };
String[] signature = { new String("long") };
CompositeData data = (CompositeData) this.mbsc.invoke(queue, this.method1, params, signature);
List<String> itemNames = new ArrayList<String>(data.getCompositeType().keySet());
for (int j = 0; j < itemNames.size(); j++)
{
temp_header = "";
temp_header = itemNames.get(j);
while (temp_header.length() < 15)
temp_header = " " + temp_header;
header = header + temp_header + "|";
}
echo(header);
encoding = String.valueOf(data.get(itemNames.get(2))); // set
// the
// encoding
// at
// the
// beginning
// because
// encoding
// comes
// later
// in
// the
// loop
if (encoding == null || encoding.length() == 0)
{
encoding = Charset.defaultCharset().name();
}
for (int j = 0; j < itemNames.size(); j++)
{
temp_header = "";
if (j != 1)
{
temp_header = String.valueOf(data.get(itemNames.get(j)));
while (temp_header.length() < 15)
temp_header = " " + temp_header;
}
else
{
Byte[] arrayItems = (Byte[]) data.get(itemNames.get(j));
byte[] byteArray = new byte[arrayItems.length];
for (int i = 0; i < arrayItems.length; i++)
{
byteArray[i] = arrayItems[i];
temp_header = new String(byteArray, encoding);
while (temp_header.length() < 15)
temp_header = " " + temp_header;
}
}
message_data = message_data + temp_header + "|";
}
echo(message_data);
}
}
catch (Exception ex)
{
echo("Given MessageId is invalid, There's no message with the given messageId");
ex.printStackTrace();
return;
}
}
else
{
if (hasName())
{
echo("The Queue you have specified is not in the current broker");
echo("");
}
else
{
printusage();
}
}
}
public void execute()
{
/*
* In here you it's easy to handle any number of otpions which are going
* to add with the list command which works with main option object or o
*/
if (checkoptionsetting("object") || checkoptionsetting("o"))
{
String object = optionchecker("object");
if (object == null)
{
object = optionchecker("o");
}
if (object.compareToIgnoreCase("queue") == 0)
setObject(object);
else
{
unrecognizeoption();
echo("This command is only applicable for delete command so please start with queue");
}
if (checkoptionsetting("name") || checkoptionsetting("n"))
{
String name = optionchecker("name");
if (name == null)
name = optionchecker("n");
setName(name);
}
if (checkoptionsetting("virtualhost") || checkoptionsetting("v"))
{
String vhost = optionchecker("virtualhost");
if (vhost == null)
vhost = optionchecker("v");
setVirtualhost(vhost);
}
if (checkoptionsetting("messageid") || checkoptionsetting("id"))
{
String number = optionchecker("id");
if (number == null)
number = optionchecker("id");
setnumber(removeSpaces(number));
}
this.viewcontent();
}
else if (checkoptionsetting("h") || checkoptionsetting("help"))
printusage();
else
unrecognizeoption();
}
public void printusage()
{
echo("");
echo("Usage:viewcontent [OPTION] ... [OBJECT TYPE]...\n");
echo("view the information about given number of messages from the given queue object\n");
echo("To specify the desired queue you have to give the virtualhost name and the queue name with following commands\n");
echo("Where possible options include:\n");
echo(" -v --virtualhost Give the virtuallhost name of the desired queue");
echo(" -n --name Give the queue name of the desired queue you want to view messages");
echo(" -id Give the messageId of the required message you want to view the content");
echo(" -h --help Display the help and back to the qpid-cli prompt\n");
}
private void setnumber(String number)
{
this.number = Long.valueOf(number);
}
private static String removeSpaces(String s)
{
StringTokenizer st = new StringTokenizer(s, " ", false);
String t = "";
while (st.hasMoreElements())
t += st.nextElement();
return t;
}
public long getnumber()
{
return this.number;
}
}