JMXQuasiWire.java

/*******************************************************************************
 * Copyright (c) 2008, 2012 VMware Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   VMware Inc. - initial contribution
 *******************************************************************************/
package org.eclipse.virgo.kernel.userregion.internal.management;

import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

import org.eclipse.osgi.service.resolver.BundleDescription;
import org.eclipse.virgo.kernel.osgi.quasi.QuasiBundle;
import org.eclipse.virgo.kernel.osgi.quasi.QuasiExportPackage;
import org.eclipse.virgo.kernel.osgi.quasi.QuasiImportPackage;
import org.eclipse.virgo.kernel.osgi.quasi.QuasiRequiredBundle;

public class JMXQuasiWire {

	private final String namespace;
	
	private final long providerId;
	
	private final long requirerId;
	
	private final Map<String, String> bundleCapabilityAttributes;
	
	private final Map<String, String> bundleCapabilityDirectives;
	
	private final Map<String, String> bundleRequirementAttributes;
	
	private final Map<String, String> bundleRequirementDirectives;
	
	public JMXQuasiWire(QuasiImportPackage quasiImportPackage) {
		this.namespace = BundleDescription.PACKAGE_NAMESPACE;
		this.requirerId = quasiImportPackage.getImportingBundle().getBundleId();
		QuasiExportPackage provider = quasiImportPackage.getProvider();
		if(provider != null){
			this.providerId = quasiImportPackage.getProvider().getExportingBundle().getBundleId();
			this.bundleCapabilityAttributes = this.stringifyMap(provider.getAttributes());
			this.bundleCapabilityDirectives = this.stringifyMap(provider.getDirectives());
		}else{
			this.providerId = -1l;
			this.bundleCapabilityAttributes = new HashMap<String, String>();
			this.bundleCapabilityDirectives = new HashMap<String, String>();
		}
		this.bundleRequirementAttributes = this.stringifyMap(quasiImportPackage.getAttributes());
		this.bundleRequirementDirectives = this.stringifyMap(quasiImportPackage.getDirectives());
	}
	
	public JMXQuasiWire(QuasiBundle provider, QuasiBundle requirer) {
		this.namespace = BundleDescription.HOST_NAMESPACE;
		this.providerId = provider.getBundleId();
		this.requirerId = requirer.getBundleId();
		this.bundleCapabilityAttributes = new HashMap<String, String>();
		this.bundleCapabilityDirectives = new HashMap<String, String>();
		this.bundleRequirementAttributes = this.getProperties(new String[]{"host", provider.getSymbolicName()}, new String[]{"bundle-version", provider.getVersion().toString()});
		this.bundleRequirementDirectives = new HashMap<String, String>();
	}

	public JMXQuasiWire(QuasiRequiredBundle provider,QuasiBundle requirer) {
		this.namespace = BundleDescription.BUNDLE_NAMESPACE;
		QuasiBundle quasiProvider = provider.getProvider();
		if(quasiProvider == null){
			this.providerId = -1l;
		}else{
			this.providerId = quasiProvider.getBundleId();
		}
		this.requirerId = requirer.getBundleId();
		this.bundleCapabilityAttributes = this.stringifyMap(provider.getAttributes());
		this.bundleCapabilityDirectives = this.stringifyMap(provider.getDirectives());
		this.bundleRequirementAttributes = this.getProperties(new String[]{"Required-Bundle", provider.getRequiredBundleName()}, new String[]{"Version-Constraint", provider.getVersionConstraint().toString()});
		this.bundleRequirementDirectives = new HashMap<String, String>();
	}

	public final long getRequirerBundleId(){
		return this.requirerId;
	}
	
	public final long getProviderBundleId(){
		return this.providerId;
	}
	
	public final String getNamespace(){
		return this.namespace;
	}
	
	public final Map<String, String> getBundleCapabilityAttributes(){
		return this.bundleCapabilityAttributes;
	}

	public final Map<String, String> getBundleCapabilityDirectives(){
		return this.bundleCapabilityDirectives;
	}
	
	public final Map<String, String> getBundleRequirementAttributes(){
		return this.bundleRequirementAttributes;
	}
	
	public final Map<String, String> getBundleRequirementDirectives(){
		return this.bundleRequirementDirectives;
	}
	
	private Map<String, String> stringifyMap(Map<String, Object> map){
		Map<String, String> properties = new HashMap<String, String>();
		for(Entry<String, Object> entry: map.entrySet()){
			if(entry.getValue().getClass().isArray()){
				Object[] valueArray = (Object[]) entry.getValue();
				StringBuilder builder = new StringBuilder();
				for (int i = 0; i < valueArray.length; i++) {
					builder.append(valueArray[i].toString());
					if(i < valueArray.length -1){
						builder.append(", ");
					}
				}
				properties.put(entry.getKey(), builder.toString());
			}else{
				properties.put(entry.getKey(), entry.getValue().toString());
			}
		}
		return properties;
	}
	
	private Map<String, String> getProperties(String[]... strings){
		Map<String, String> properties = new HashMap<String, String>();
		for (int i = 0; i < strings.length; i++) {
			properties.put(strings[i][0], strings[i][1]);
		}
		return properties;
	}
	
}