tomcatlauncherplugin.java

一个学习eclipse插件开发的绝好入门程序

package com.sysdeo.eclipse.tomcat;

/*
 * (c) Copyright Sysdeo SA 2001, 2002.
 * All Rights Reserved.
 */

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.MissingResourceException;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;
import java.util.StringTokenizer;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResourceChangeEvent;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.ILog;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IPluginDescriptor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.launching.JavaRuntime;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.plugin.AbstractUIPlugin;


import com.sysdeo.eclipse.tomcat.editors.ProjectListElement;


/**
 * The main plugin class to be used in the desktop.
 */
public class TomcatLauncherPlugin extends AbstractUIPlugin {

	public static final String PLUGIN_ID = "com.sysdeo.eclipse.tomcat" ; 
	public static final String NATURE_ID = PLUGIN_ID + ".tomcatnature" ; 

	static final String TOMCAT_PREF_HOME_KEY = "tomcatDir";
	static final String TOMCAT_PREF_BASE_KEY = "tomcatBase";	
	static final String TOMCAT_PREF_CONFIGFILE_KEY = "tomcatConfigFile";
	static final String TOMCAT_PREF_VERSION_KEY = "tomcatVersion";
	static final String TOMCAT_PREF_JRE_KEY = "tomcatJRE";
	static final String TOMCAT_PREF_JVM_PARAMETERS_KEY = "jvmParameters";
	static final String TOMCAT_PREF_JVM_CLASSPATH_KEY = "jvmClasspath";
	static final String TOMCAT_PREF_JVM_BOOTCLASSPATH_KEY = "jvmBootClasspath";
	static final String TOMCAT_PREF_PROJECTSINCP_KEY = "projectsInCp";
	static final String TOMCAT_PREF_PROJECTSINSOURCEPATH_KEY = "projectsInSourcePath";
	static final String TOMCAT_PREF_COMPUTESOURCEPATH_KEY = "computeSourcePath";
	static final String TOMCAT_PREF_DEBUGMODE_KEY = "tomcatDebugMode";
	static final String TOMCAT_PREF_TARGETPERSPECTIVE = "targetPerspective";
	static final String TOMCAT_PREF_SECURITYMANAGER = "enabledSecurityManager";
	static final String TOMCAT_PREF_MANAGER_URL = "managerUrl";
	static final String TOMCAT_PREF_MANAGER_USER = "managerUser";
	static final String TOMCAT_PREF_MANAGER_PASSWORD = "managerPassword";		
	static final String TOMCAT_VERSION3 = "tomcatV3";
	static final String TOMCAT_VERSION4 = "tomcatV4";
	static final String TOMCAT_VERSION41 = "tomcatV41";
	static final String TOMCAT_VERSION5 = "tomcatV5";
	static final String TOMCAT_VERSION6 = "tomcatV6";
	static final String TOMCAT_PREF_CONFMODE_KEY = "configMode";		
	static final String SERVERXML_MODE = "serverFile";
	static final String CONTEXTFILES_MODE = "contextFiles";
	static final String TOMCAT_PREF_CONTEXTSDIR_KEY = "contextsDir";
				
	private static final String TOMCAT_HOME_CLASSPATH_VARIABLE = "TOMCAT_HOME";


	//The shared instance.
	private static TomcatLauncherPlugin plugin;
	//Resource bundle.
	private ResourceBundle resourceBundle;
	
	/**
	 * The constructor.
	 */
	public TomcatLauncherPlugin(IPluginDescriptor descriptor) {
		super(descriptor);
		plugin = this;
		try {
			resourceBundle= PropertyResourceBundle.getBundle("resources");
		} catch (MissingResourceException x) {
			resourceBundle = null;
		}
		
		this.getWorkspace().addResourceChangeListener(new TomcatProjectChangeListener(), IResourceChangeEvent.PRE_DELETE);
	}

	/**
	 * Remove TOMCAT_HOME variable from Tomcat projects build path
	 * (Eclipse 3 will not compile Tomcat projects without this fix)
	 */
	private void fixTomcatHomeBug() {
		if(this.getPreferenceStore().getString("fixTomcatHomeBug").equals("")) {
			this.getPreferenceStore().setValue("fixTomcatHomeBug", "fixed");
			IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
			IProject[] projects = root.getProjects();
			
			try {
				for (int i = 0; i < projects.length; i++) {
					if(projects[i].hasNature(NATURE_ID)) {
						List cp = new ArrayList(projects.length - 1);
						IJavaProject javaProject = JavaCore.create(projects[i]);
						IClasspathEntry[] classpath = javaProject.getRawClasspath();
						cp.addAll(Arrays.asList(classpath));
						for (int j = 0; j < classpath.length; j++) {
							if(classpath[j].getEntryKind() == IClasspathEntry.CPE_VARIABLE) {
								if(classpath[j].getPath().equals(TomcatLauncherPlugin.getDefault().getTomcatIPath()))
									cp.remove(classpath[j]);
							}
						}
						javaProject.setRawClasspath((IClasspathEntry[])cp.toArray(new IClasspathEntry[cp.size()]), null);
					}
				}
			} catch (Exception e) {
				log(e);
			}
		}
	}

	/**
	 * Returns the shared instance.
	 */
	public static TomcatLauncherPlugin getDefault() {
		return plugin;
	}

	/**
	 * Returns the workspace instance.
	 */
	public static IWorkspace getWorkspace() {
		return ResourcesPlugin.getWorkspace();
	}
	
	/**
	 * Returns the active shell for this plugin.
	 */
	public static Shell getShell() {
		return getDefault().getWorkbench().getActiveWorkbenchWindow().getShell();
	}

	/**
	 * Returns the string from the plugin's resource bundle,
	 * or 'key' if not found.
	 */
	public static String getResourceString(String key) {
		ResourceBundle bundle= TomcatLauncherPlugin.getDefault().getResourceBundle();
		try {
			return bundle.getString(key);
		} catch (MissingResourceException e) {
			return key;
		}
	}

	/**
	 * Returns the plugin's resource bundle,
	 */
	public ResourceBundle getResourceBundle() {
		try {
			resourceBundle= PropertyResourceBundle.getBundle("resources");
		} catch (MissingResourceException x) {
			resourceBundle = null;
		}
		return resourceBundle;
	}


	public String getTomcatDir() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getString(TOMCAT_PREF_HOME_KEY);
	}

	public String getTomcatBase() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getString(TOMCAT_PREF_BASE_KEY);
	}

	public String getConfigFile() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getString(TOMCAT_PREF_CONFIGFILE_KEY);
	}

	public String getConfigMode() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getString(TOMCAT_PREF_CONFMODE_KEY);
	}
	
	public String getContextsDir() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getString(TOMCAT_PREF_CONTEXTSDIR_KEY);
	}
		
	public String getTomcatVersion() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		String result = pref.getString(TOMCAT_PREF_VERSION_KEY);
		if (result.equals("")) 
			result = TOMCAT_VERSION4;
			
		return result;
	}

	public String getTomcatJRE() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		String result = pref.getString(TOMCAT_PREF_JRE_KEY);
		if (result.equals("")) 
			result = JavaRuntime.getDefaultVMInstall().getId();
			
		return result;
	}
	
	public boolean isDebugMode() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return !pref.getBoolean(TOMCAT_PREF_DEBUGMODE_KEY);
	}

	public String getTargetPerspective() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getString(TOMCAT_PREF_TARGETPERSPECTIVE);
	}

	public boolean isSecurityManagerEnabled() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getBoolean(TOMCAT_PREF_SECURITYMANAGER);
	}
	
	public String getJvmParamaters() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getString(TOMCAT_PREF_JVM_PARAMETERS_KEY);		
	}

	public String getJvmClasspath() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getString(TOMCAT_PREF_JVM_CLASSPATH_KEY);		
	}

	public String getJvmBootClasspath() {
		IPreferenceStore pref =	TomcatLauncherPlugin.getDefault().getPreferenceStore();
		return pref.getString(TOMCAT_PREF_JVM_BOOTCLASSPATH_KEY);