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/*
* 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.tuscany.sca.contribution.osgi;
import org.osgi.framework.Bundle;
import org.osgi.framework.Constants;
/**
* A reference to an OSGi bundle
*
* @version $Rev$ $Date$
*/
public class BundleReference {
/**
* The bundle.
*/
private Bundle bundle;
/**
* The bundle version.
*/
private String version;
/**
* The bundle name and version.
*/
private String symbolicName;
/**
* Constructs a new BundleReference.
*
* @param bundle
*/
public BundleReference(Bundle bundle) {
this.bundle = bundle;
this.symbolicName = bundle.getSymbolicName();
this.version = (String)bundle.getHeaders().get(Constants.BUNDLE_VERSION);
}
/**
* Constructs a new BundleReference.
*
* @param bundleSymbolicName The bundle symbolic name
* @param bundleVersion The bundle version
*/
public BundleReference(String bundleSymbolicName, String bundleVersion) {
this.version = bundleVersion;
this.symbolicName = bundleSymbolicName;
}
/**
* Get the referenced bundle.
*
* @return The referenced bundle
*/
public Bundle getBundle() {
return bundle;
}
/**
* Get the referenced bundle version.
*
* @return The bundle version
*/
public String getVersion() {
return version;
}
/**
* Get the referenced bundle name and version.
*
* @return The bundle name
*/
public String getSymbolicName() {
return symbolicName;
}
/**
* Returns true if the bundle reference is unresolved.
*
* @return Whether or not the bundle has been resolved
*/
public boolean isUnresolved() {
return bundle == null;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((symbolicName == null) ? 0 : symbolicName.hashCode());
result = prime * result + ((version == null) ? 0 : version.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
BundleReference other = (BundleReference)obj;
if (symbolicName == null) {
if (other.symbolicName != null)
return false;
} else if (!symbolicName.equals(other.symbolicName))
return false;
if (version == null) {
if (other.version != null)
return false;
} else if (!version.equals(other.version))
return false;
return true;
}
}
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