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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
Bootstrapper.java | 0% | 0% | 0% | 0% |
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package org.codehaus.classworlds.uberjar.boot;
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/*
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$Id: Bootstrapper.java,v 1.1.1.1 2004/07/01 13:59:19 jvanzyl Exp $
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Copyright 2002 (C) The Werken Company. All Rights Reserved.
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Redistribution and use of this software and associated documentation
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("Software"), with or without modification, are permitted provided
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that the following conditions are met:
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1. Redistributions of source code must retain copyright
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statements and notices. Redistributions must also contain a
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copy of this document.
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2. Redistributions in binary form must reproduce the
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above copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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3. The name "classworlds" must not be used to endorse or promote
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products derived from this Software without prior written
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permission of The Werken Company. For written permission,
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please contact bob@werken.com.
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4. Products derived from this Software may not be called "classworlds"
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nor may "classworlds" appear in their names without prior written
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permission of The Werken Company. "classworlds" is a registered
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trademark of The Werken Company.
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5. Due credit should be given to The Werken Company.
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(http://classworlds.werken.com/).
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THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
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NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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THE WERKEN COMPANY OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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import java.lang.reflect.Method;
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import java.lang.reflect.Modifier;
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/**
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* Bootstrapping entry-point.
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* <p/>
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* <p/>
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* The <code>Bootstrapper</code> is to be used for standalone jars
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* which carry all dependency jars within them. The layout for
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* the dependency jar should be similar to:
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* </p>
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* <p/>
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* <pre>
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* myjar/
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* classworlds.conf
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* org/
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* codehaus/
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* classworlds/
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* boot/
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* protocol/
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* lib/
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* myapp.jar
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* depOne.jar
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* depTwo.jar
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* </pre>
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*
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* @author <a href="mailto:jason@zenplex.com">Jason van Zyl</a>
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* @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a>
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* @version $Id: Bootstrapper.java,v 1.1.1.1 2004/07/01 13:59:19 jvanzyl Exp $
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*/
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public class Bootstrapper |
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{ |
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// ----------------------------------------------------------------------
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// Constants
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// ----------------------------------------------------------------------
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/**
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* Main classworlds entry class.
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*/
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public static final String LAUNCHER_CLASS_NAME = "org.codehaus.classworlds.Launcher"; |
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// ----------------------------------------------------------------------
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// Instance members
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// ----------------------------------------------------------------------
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/**
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* Command-line args.
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*/
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private String[] args;
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/**
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* Initial bootstrapping classloader.
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*/
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private InitialClassLoader classLoader;
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// ----------------------------------------------------------------------
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// Class methods
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// ----------------------------------------------------------------------
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/**
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* Main entry-point.
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*
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* @param args Command-line arguments.
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* @throws Exception If an error occurs.
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*/
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public static void main( String[] args ) |
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throws Exception
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{ |
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System.setProperty( "java.protocol.handler.pkgs",
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"org.codehaus.classworlds.uberjar.protocol" );
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Bootstrapper bootstrapper = new Bootstrapper( args );
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bootstrapper.bootstrap(); |
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} |
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// ----------------------------------------------------------------------
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// Constructors
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// ----------------------------------------------------------------------
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/**
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* Construct.
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*
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* @param args Command-line arguments.
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* @throws Exception If an error occurs attempting to perform
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* bootstrap initialization.
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*/
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public Bootstrapper( String[] args )
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throws Exception
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{ |
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this.args = args;
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this.classLoader = new InitialClassLoader(); |
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} |
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// ----------------------------------------------------------------------
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// Instance methods
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// ----------------------------------------------------------------------
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/**
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* Retrieve the initial bootstrapping <code>ClassLoader</code>.
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*
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* @return The classloader.
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*/
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protected ClassLoader getInitialClassLoader()
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{ |
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return this.classLoader; |
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} |
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/**
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* Perform bootstrap.
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*
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* @throws Exception If an error occurs while bootstrapping.
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*/
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public void bootstrap() |
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throws Exception
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{ |
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ClassLoader cl = getInitialClassLoader(); |
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Class launcherClass = cl.loadClass( LAUNCHER_CLASS_NAME ); |
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Method[] methods = launcherClass.getMethods(); |
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Method mainMethod = null;
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for ( int i = 0; i < methods.length; ++i ) |
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{ |
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if ( !"main".equals( methods[i].getName() ) ) |
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{ |
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continue;
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} |
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int modifiers = methods[i].getModifiers();
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if ( !( Modifier.isStatic( modifiers )
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&& |
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Modifier.isPublic( modifiers ) ) ) |
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{ |
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continue;
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} |
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if ( methods[i].getReturnType() != Void.TYPE )
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{ |
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continue;
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} |
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Class[] paramTypes = methods[i].getParameterTypes(); |
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if ( paramTypes.length != 1 )
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{ |
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continue;
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} |
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if ( paramTypes[0] != String[].class ) |
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{ |
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continue;
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} |
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mainMethod = methods[i]; |
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break;
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} |
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if ( mainMethod == null ) |
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{ |
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throw new NoSuchMethodException( LAUNCHER_CLASS_NAME + "::main(String[] args)" ); |
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} |
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System.setProperty( "classworlds.bootstrapped",
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"true" );
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mainMethod.invoke( launcherClass, |
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new Object[]{this.args} ); |
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} |
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} |
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