org.apache.ace.obr/src/org/osgi/impl/bundle/obr/resource/ResourceImpl.java - ace - Git at Google

 /*
  * $Id: ResourceImpl.java 44 2007-07-13 20:49:41Z hargrave@us.ibm.com $
  *
  * Copyright (c) OSGi Alliance (2002, 2006, 2007). All Rights Reserved.
  *
  * Licensed 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.osgi.impl.bundle.obr.resource;

 import java.io.File;
 import java.net.URL;
 import java.util.*;

 import org.osgi.framework.Version;
 import org.osgi.service.obr.*;
 import org.xmlpull.v1.XmlPullParser;

 import aQute.bnd.annotation.ProviderType;

 @ProviderType
 public class ResourceImpl implements Resource {
 	List			capabilities	= new ArrayList();
 	List			requirements	= new ArrayList();
 	URL				url;
 	String			symbolicName;
 	VersionRange		version;
 	List			categories		= new ArrayList();
 	long			size			= -1;
 	String			id;
 	static int		ID				= 1;
 	Map				map				= new HashMap();
 	RepositoryImpl	repository;
 	String			presentationName;
 	File			file;


 	public ResourceImpl(RepositoryImpl repository, String name,
 			VersionRange version) {
 		this.version = version;
 		if ( version == null)
 			this.version = new VersionRange("0");
 		this.symbolicName = name;
 		this.repository = repository;
 	}

 	public ResourceImpl(RepositoryImpl repository, XmlPullParser parser)
 			throws Exception {
 		this.repository = repository;
 		parser.require(XmlPullParser.START_TAG, null, "resource");
 		symbolicName = parser.getAttributeValue(null, "symbolicname");
 		if (symbolicName == null)
 			System.err.println("Hey, no symb name! "
 					+ parser.getAttributeValue(null, "uri"));

 		map.put(SYMBOLIC_NAME, symbolicName);
 		presentationName = parser.getAttributeValue(null, PRESENTATION_NAME);
 		if (presentationName != null)
 			map.put(PRESENTATION_NAME, presentationName);
 		String v = parser.getAttributeValue(null, "version");
 		if (v == null)
 			setVersion(new VersionRange("0"));
 		else
 			setVersion(new VersionRange(v));

 		setURL(toURL(parser.getAttributeValue(null, "uri")));

 		while (parser.nextTag() == XmlPullParser.START_TAG) {
 			if (parser.getName().equals("category")) {
 				categories.add(parser.getAttributeValue(null, "id").trim());
 			}
 			else if (parser.getName().equals("require"))
 				addRequirement(new RequirementImpl(parser));
 			else if (parser.getName().equals("capability"))
 				addCapability(new CapabilityImpl(parser));
 			else {
 				String text = parser.nextText();
 				if (text != null)
 					map.put(parser.getName(), text.trim());
 			}
 			parser.next();
 		}
 		parser.require(XmlPullParser.END_TAG, null, "resource");
 	}

 	public ResourceImpl(RepositoryImpl impl) {
 		this.repository = impl;
 	}

     public ResourceImpl(RepositoryImpl impl, URL url) {
         this.repository = impl;
         setURL(url);
     }

 	private URL toURL(String attributeValue) throws Exception {
 		if (attributeValue == null)
 			return null;

 		return new URL(repository.getURL(), attributeValue);
 	}

 	public void addCategory(String category) {
 		categories.add(category);
 	}

 	public void addCapability(CapabilityImpl capability) {
 		if (capability != null)
 			capabilities.add(capability);
 	}

 	public void addRequirement(RequirementImpl requirement) {
 		if (requirement != null)
 			requirements.add(requirement);
 	}

 	public void setLicense(URL license) {
 		if (license != null)
 			map.put(LICENSE_URL, license);
 	}

 	public String getDescription() {
 		return (String) map.get(DESCRIPTION);
 	}

 	public void setDescription(String description) {
 		if (description != null)
 			map.put(DESCRIPTION, description);
 	}

 	public Capability[] getCapabilities() {
 		return (Capability[]) capabilities.toArray(new Capability[capabilities
 				.size()]);
 	}

 	public URL getLicense() {
 		return (URL) map.get(LICENSE_URL);
 	}

 	public String getSymbolicName() {
 		return symbolicName;
 	}

 	public Requirement[] getRequirements() {
 		return (Requirement[]) requirements
 				.toArray(new Requirement[requirements.size()]);
 	}

 	public Tag toXML() {
 		return toXML(this );
 	}

 	public static Tag toXML(Resource resource) {
 		return toXML(resource,true);
 	}

 	public static Tag toXML(Resource resource, boolean relative ) {
 		Tag meta = new Tag("resource");
 		URL url = resource.getURL();
 		String urlString = url.toExternalForm();

 		if ( relative )
 			urlString = makeRelative(resource.getRepository().getURL(), url);

 		meta.addAttribute("uri", urlString );
 		if (urlString.endsWith(".jar")) {
 		    meta.addAttribute(SYMBOLIC_NAME, resource.getSymbolicName());
 		    if (resource.getPresentationName() != null)
 		        meta
 		        .addAttribute(PRESENTATION_NAME, resource
 		                .getPresentationName());
 		    meta.addAttribute(VERSION, resource.getVersion().toString());
 		    meta.addAttribute("id", resource.getId());
 		    Map map = new TreeMap(resource.getProperties());
 		    for (int i = 0; i < Resource.KEYS.length; i++) {
 		        String key = KEYS[i];
 		        if (!(key.equals(URL) || key.equals(SYMBOLIC_NAME) || key
 		                .equals(VERSION) || key.equals(PRESENTATION_NAME))) {
 		            Object value = map.get(KEYS[i]);
 		            if (value != null) {
 		                if (value instanceof URL)
 		                    value = makeRelative(resource.getRepository().getURL(),(URL) value);
 		                meta.addContent(new Tag(key, value.toString()));
 		            }
 		        }
 		    }

 		    String[] categories = resource.getCategories();
 		    for (int i = 0; i < categories.length; i++) {
 		        String category = categories[i];
 		        meta.addContent(new Tag("category", new String[] {"id",
 		                category.toLowerCase()}));
 		    }

 		    Capability[] capabilities = resource.getCapabilities();
 		    for (int i = 0; i < capabilities.length; i++) {
 		        meta.addContent(CapabilityImpl.toXML(capabilities[i]));
 		    }

 		    Requirement[] requirements = resource.getRequirements();
 		    for (int i = 0; i < requirements.length; i++) {
 		        meta.addContent(RequirementImpl.toXML(requirements[i]));
 		    }
 		}
 		return meta;
 	}

 	public URL getURL() {
 		return url;
 	}

 	static String makeRelative(URL repository, URL url) {
 		try {
 			if (repository != null) {
 				String a = url.toExternalForm();
 				String b = repository.toExternalForm();
 				int index = b.lastIndexOf('/');
 				if ( index > 0 )
 					b = b.substring(0,index+1);
 				if (a.startsWith(b))
 					return a.substring(b.length());
 			}
 		}
 		catch (Exception e) {
 			// Ignore
 		}
 		return url.toExternalForm();
 	}

 	public void setURL(URL url) {
 		this.url = url;
 		if (url != null)
 			map.put(URL, url);
 	}

 	public String getCopyright() {
 		return (String) map.get(COPYRIGHT);
 	}

 	public Version getVersion() {
 		if (version == null)
 			version = new VersionRange("0");
 		return version.low;
 	}

 	void setVersion(VersionRange version) {
 		if (version == null)
 			this.version = new VersionRange("0");
 		else
 			this.version = version;
 	}

 	public void setCopyright(String copyright) {
 		if (copyright != null)
 			map.put(COPYRIGHT, copyright);
 	}

 	public URL getDocumentation() {
 		return (URL) map.get(DOCUMENTATION_URL);
 	}

 	public void setDocumentation(URL documentation) {
 		if (documentation != null)
 			map.put(DOCUMENTATION_URL, documentation);
 	}

 	public URL getSource() {
 		return (URL) map.get(SOURCE_URL);
 	}

 	public void setSource(URL source) {
 		if (source != null)
 			map.put(SOURCE_URL, source);
 	}

 	public boolean satisfies(RequirementImpl requirement) {
 		for (Iterator i = capabilities.iterator(); i.hasNext();) {
 			CapabilityImpl capability = (CapabilityImpl) i.next();
 			if (requirement.isSatisfied(capability))
 				return true;
 		}
 		return false;
 	}

 	@Override
     public String toString() {
 		return symbolicName + "-" + version;
 	}

 	public long getSize() {
 		return size;
 	}

 	public void setSize(long size) {
 		this.size = size;
 		map.put(SIZE, new Long(size));
 	}

 	public Collection getRequirementList() {
 		return requirements;
 	}

 	public Collection getCapabilityList() {
 		return capabilities;
 	}

 	@Override
     public int hashCode() {
 	    if (url.toExternalForm().endsWith(".jar")) {
 	        return symbolicName.hashCode() ^ version.hashCode();
 	    }
 	    else {
 	        return url.hashCode();
 	    }
 	}

 	@Override
     public boolean equals(Object o) {
 		try {
 			ResourceImpl other = (ResourceImpl) o;
 			return symbolicName.equals(other.symbolicName)
 					&& version.equals(other.version);
 		}
 		catch (ClassCastException e) {
 			return false;
 		}
 	}

 	public String[] getCategories() {
 		return (String[]) categories.toArray(new String[categories.size()]);
 	}

 	public Map getProperties() {
 		return Collections.unmodifiableMap(map);
 	}

 	public synchronized String getId() {
 		if ( id == null )
 			id = symbolicName + "/" + version;
 		return id;
 	}

 	public Repository getRepository() {
 		return repository;
 	}

 	void setName(String value) {
 		this.symbolicName = value;
 	}

 	void put(String name, Object value) {
 		map.put(name, value);
 	}

 	public void setPresentationName(String name) {
 		presentationName = name;
 		if (name != null)
 			map.put(PRESENTATION_NAME, name);
 	}

 	public String getPresentationName() {
 		return presentationName;
 	}

 	public void setFile(File zipFile) {
 		file = zipFile;
 	}

 	public Set getExtendList() {
 		Set set = new HashSet();
 		for (Iterator i = requirements.iterator(); i.hasNext();) {
 			RequirementImpl	impl = (RequirementImpl) i.next();
 			if ( impl.isExtend())
 				set.add(impl);
 		}
 		return set;
 	}

 }
	/*
	* $Id: ResourceImpl.java 44 2007-07-13 20:49:41Z hargrave@us.ibm.com $
	*
	* Copyright (c) OSGi Alliance (2002, 2006, 2007). All Rights Reserved.
	*
	* Licensed 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.osgi.impl.bundle.obr.resource;

	import java.io.File;
	import java.net.URL;
	import java.util.*;

	import org.osgi.framework.Version;
	import org.osgi.service.obr.*;
	import org.xmlpull.v1.XmlPullParser;

	import aQute.bnd.annotation.ProviderType;

	@ProviderType
	public class ResourceImpl implements Resource {
	List capabilities = new ArrayList();
	List requirements = new ArrayList();
	URL url;
	String symbolicName;
	VersionRange version;
	List categories = new ArrayList();
	long size = -1;
	String id;
	static int ID = 1;
	Map map = new HashMap();
	RepositoryImpl repository;
	String presentationName;
	File file;


	public ResourceImpl(RepositoryImpl repository, String name,
	VersionRange version) {
	this.version = version;
	if ( version == null)
	this.version = new VersionRange("0");
	this.symbolicName = name;
	this.repository = repository;
	}

	public ResourceImpl(RepositoryImpl repository, XmlPullParser parser)
	throws Exception {
	this.repository = repository;
	parser.require(XmlPullParser.START_TAG, null, "resource");
	symbolicName = parser.getAttributeValue(null, "symbolicname");
	if (symbolicName == null)
	System.err.println("Hey, no symb name! "
	+ parser.getAttributeValue(null, "uri"));

	map.put(SYMBOLIC_NAME, symbolicName);
	presentationName = parser.getAttributeValue(null, PRESENTATION_NAME);
	if (presentationName != null)
	map.put(PRESENTATION_NAME, presentationName);
	String v = parser.getAttributeValue(null, "version");
	if (v == null)
	setVersion(new VersionRange("0"));
	else
	setVersion(new VersionRange(v));

	setURL(toURL(parser.getAttributeValue(null, "uri")));

	while (parser.nextTag() == XmlPullParser.START_TAG) {
	if (parser.getName().equals("category")) {
	categories.add(parser.getAttributeValue(null, "id").trim());
	}
	else if (parser.getName().equals("require"))
	addRequirement(new RequirementImpl(parser));
	else if (parser.getName().equals("capability"))
	addCapability(new CapabilityImpl(parser));
	else {
	String text = parser.nextText();
	if (text != null)
	map.put(parser.getName(), text.trim());
	}
	parser.next();
	}
	parser.require(XmlPullParser.END_TAG, null, "resource");
	}

	public ResourceImpl(RepositoryImpl impl) {
	this.repository = impl;
	}

	public ResourceImpl(RepositoryImpl impl, URL url) {
	this.repository = impl;
	setURL(url);
	}

	private URL toURL(String attributeValue) throws Exception {
	if (attributeValue == null)
	return null;

	return new URL(repository.getURL(), attributeValue);
	}

	public void addCategory(String category) {
	categories.add(category);
	}

	public void addCapability(CapabilityImpl capability) {
	if (capability != null)
	capabilities.add(capability);
	}

	public void addRequirement(RequirementImpl requirement) {
	if (requirement != null)
	requirements.add(requirement);
	}

	public void setLicense(URL license) {
	if (license != null)
	map.put(LICENSE_URL, license);
	}

	public String getDescription() {
	return (String) map.get(DESCRIPTION);
	}

	public void setDescription(String description) {
	if (description != null)
	map.put(DESCRIPTION, description);
	}

	public Capability[] getCapabilities() {
	return (Capability[]) capabilities.toArray(new Capability[capabilities
	.size()]);
	}

	public URL getLicense() {
	return (URL) map.get(LICENSE_URL);
	}

	public String getSymbolicName() {
	return symbolicName;
	}

	public Requirement[] getRequirements() {
	return (Requirement[]) requirements
	.toArray(new Requirement[requirements.size()]);
	}

	public Tag toXML() {
	return toXML(this );
	}

	public static Tag toXML(Resource resource) {
	return toXML(resource,true);
	}

	public static Tag toXML(Resource resource, boolean relative ) {
	Tag meta = new Tag("resource");
	URL url = resource.getURL();
	String urlString = url.toExternalForm();

	if ( relative )
	urlString = makeRelative(resource.getRepository().getURL(), url);

	meta.addAttribute("uri", urlString );
	if (urlString.endsWith(".jar")) {
	meta.addAttribute(SYMBOLIC_NAME, resource.getSymbolicName());
	if (resource.getPresentationName() != null)
	meta
	.addAttribute(PRESENTATION_NAME, resource
	.getPresentationName());
	meta.addAttribute(VERSION, resource.getVersion().toString());
	meta.addAttribute("id", resource.getId());
	Map map = new TreeMap(resource.getProperties());
	for (int i = 0; i < Resource.KEYS.length; i++) {
	String key = KEYS[i];
	if (!(key.equals(URL) \|\| key.equals(SYMBOLIC_NAME) \|\| key
	.equals(VERSION) \|\| key.equals(PRESENTATION_NAME))) {
	Object value = map.get(KEYS[i]);
	if (value != null) {
	if (value instanceof URL)
	value = makeRelative(resource.getRepository().getURL(),(URL) value);
	meta.addContent(new Tag(key, value.toString()));
	}
	}
	}

	String[] categories = resource.getCategories();
	for (int i = 0; i < categories.length; i++) {
	String category = categories[i];
	meta.addContent(new Tag("category", new String[] {"id",
	category.toLowerCase()}));
	}

	Capability[] capabilities = resource.getCapabilities();
	for (int i = 0; i < capabilities.length; i++) {
	meta.addContent(CapabilityImpl.toXML(capabilities[i]));
	}

	Requirement[] requirements = resource.getRequirements();
	for (int i = 0; i < requirements.length; i++) {
	meta.addContent(RequirementImpl.toXML(requirements[i]));
	}
	}
	return meta;
	}

	public URL getURL() {
	return url;
	}

	static String makeRelative(URL repository, URL url) {
	try {
	if (repository != null) {
	String a = url.toExternalForm();
	String b = repository.toExternalForm();
	int index = b.lastIndexOf('/');
	if ( index > 0 )
	b = b.substring(0,index+1);
	if (a.startsWith(b))
	return a.substring(b.length());
	}
	}
	catch (Exception e) {
	// Ignore
	}
	return url.toExternalForm();
	}

	public void setURL(URL url) {
	this.url = url;
	if (url != null)
	map.put(URL, url);
	}

	public String getCopyright() {
	return (String) map.get(COPYRIGHT);
	}

	public Version getVersion() {
	if (version == null)
	version = new VersionRange("0");
	return version.low;
	}

	void setVersion(VersionRange version) {
	if (version == null)
	this.version = new VersionRange("0");
	else
	this.version = version;
	}

	public void setCopyright(String copyright) {
	if (copyright != null)
	map.put(COPYRIGHT, copyright);
	}

	public URL getDocumentation() {
	return (URL) map.get(DOCUMENTATION_URL);
	}

	public void setDocumentation(URL documentation) {
	if (documentation != null)
	map.put(DOCUMENTATION_URL, documentation);
	}

	public URL getSource() {
	return (URL) map.get(SOURCE_URL);
	}

	public void setSource(URL source) {
	if (source != null)
	map.put(SOURCE_URL, source);
	}

	public boolean satisfies(RequirementImpl requirement) {
	for (Iterator i = capabilities.iterator(); i.hasNext();) {
	CapabilityImpl capability = (CapabilityImpl) i.next();
	if (requirement.isSatisfied(capability))
	return true;
	}
	return false;
	}

	@Override
	public String toString() {
	return symbolicName + "-" + version;
	}

	public long getSize() {
	return size;
	}

	public void setSize(long size) {
	this.size = size;
	map.put(SIZE, new Long(size));
	}

	public Collection getRequirementList() {
	return requirements;
	}

	public Collection getCapabilityList() {
	return capabilities;
	}

	@Override
	public int hashCode() {
	if (url.toExternalForm().endsWith(".jar")) {
	return symbolicName.hashCode() ^ version.hashCode();
	}
	else {
	return url.hashCode();
	}
	}

	@Override
	public boolean equals(Object o) {
	try {
	ResourceImpl other = (ResourceImpl) o;
	return symbolicName.equals(other.symbolicName)
	&& version.equals(other.version);
	}
	catch (ClassCastException e) {
	return false;
	}
	}

	public String[] getCategories() {
	return (String[]) categories.toArray(new String[categories.size()]);
	}

	public Map getProperties() {
	return Collections.unmodifiableMap(map);
	}

	public synchronized String getId() {
	if ( id == null )
	id = symbolicName + "/" + version;
	return id;
	}

	public Repository getRepository() {
	return repository;
	}

	void setName(String value) {
	this.symbolicName = value;
	}

	void put(String name, Object value) {
	map.put(name, value);
	}

	public void setPresentationName(String name) {
	presentationName = name;
	if (name != null)
	map.put(PRESENTATION_NAME, name);
	}

	public String getPresentationName() {
	return presentationName;
	}

	public void setFile(File zipFile) {
	file = zipFile;
	}

	public Set getExtendList() {
	Set set = new HashSet();
	for (Iterator i = requirements.iterator(); i.hasNext();) {
	RequirementImpl impl = (RequirementImpl) i.next();
	if ( impl.isExtend())
	set.add(impl);
	}
	return set;
	}

	}