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/*******************************************************************************
* Copyright (c) 2012 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.osgi.container;
import java.util.*;
import java.util.Map.Entry;
import org.eclipse.osgi.container.ModuleRevisionBuilder.GenericInfo;
import org.eclipse.osgi.internal.container.Converters;
import org.osgi.framework.Bundle;
import org.osgi.framework.Version;
import org.osgi.framework.namespace.IdentityNamespace;
import org.osgi.framework.wiring.*;
import org.osgi.resource.Capability;
import org.osgi.resource.Requirement;
/**
* An implementation of {@link BundleRevision}.
*/
public class ModuleRevision implements BundleRevision {
private final String symbolicName;
private final Version version;
private final int types;
private final List<ModuleCapability> capabilities;
private final List<ModuleRequirement> requirements;
private final ModuleRevisions revisions;
ModuleRevision(String symbolicName, Version version, int types, List<GenericInfo> capabilityInfos, List<GenericInfo> requirementInfos, ModuleRevisions revisions) {
this.symbolicName = symbolicName;
this.version = version;
this.types = types;
this.capabilities = createCapabilities(capabilityInfos);
this.requirements = createRequirements(requirementInfos);
this.revisions = revisions;
}
private List<ModuleCapability> createCapabilities(List<GenericInfo> capabilityInfos) {
if (capabilityInfos == null || capabilityInfos.isEmpty())
return Collections.emptyList();
List<ModuleCapability> result = new ArrayList<ModuleCapability>(capabilityInfos.size());
for (GenericInfo info : capabilityInfos) {
result.add(new ModuleCapability(info.namespace, info.directives, info.attributes, this));
}
return result;
}
private List<ModuleRequirement> createRequirements(List<GenericInfo> requirementInfos) {
if (requirementInfos == null || requirementInfos.isEmpty())
return Collections.emptyList();
List<ModuleRequirement> result = new ArrayList<ModuleRequirement>(requirementInfos.size());
for (GenericInfo info : requirementInfos) {
result.add(new ModuleRequirement(info.namespace, info.directives, info.attributes, this));
}
return result;
}
@Override
public Bundle getBundle() {
return revisions.getBundle();
}
@Override
public String getSymbolicName() {
return symbolicName;
}
@Override
public Version getVersion() {
return version;
}
@Override
public List<BundleCapability> getDeclaredCapabilities(String namespace) {
return Converters.asListBundleCapability(getModuleCapabilities(namespace));
}
@Override
public List<BundleRequirement> getDeclaredRequirements(String namespace) {
return Converters.asListBundleRequirement(getModuleRequirements(namespace));
}
/**
* Returns the capabilities declared by this revision
* @param namespace The namespace of the declared capabilities to return or
* {@code null} to return the declared capabilities from all namespaces.
* @return An unmodifiable list containing the declared capabilities.
*/
public List<ModuleCapability> getModuleCapabilities(String namespace) {
if (namespace == null)
return Collections.unmodifiableList(capabilities);
List<ModuleCapability> result = new ArrayList<ModuleCapability>();
for (ModuleCapability capability : capabilities) {
if (namespace.equals(capability.getNamespace())) {
result.add(capability);
}
}
return Collections.unmodifiableList(result);
}
/**
* Returns the requirements declared by this revision
* @param namespace The namespace of the declared requirements to return or
* {@code null} to return the declared requirements from all namespaces.
* @return An unmodifiable list containing the declared requirements.
*/
public List<ModuleRequirement> getModuleRequirements(String namespace) {
if (namespace == null)
return Collections.unmodifiableList(requirements);
List<ModuleRequirement> result = new ArrayList<ModuleRequirement>();
for (ModuleRequirement requirement : requirements) {
if (namespace.equals(requirement.getNamespace())) {
result.add(requirement);
}
}
return Collections.unmodifiableList(result);
}
@Override
public int getTypes() {
return types;
}
@Override
public ModuleWiring getWiring() {
return revisions.getContainer().getWiring(this);
}
@Override
public List<Capability> getCapabilities(String namespace) {
return Converters.asListCapability(getDeclaredCapabilities(namespace));
}
@Override
public List<Requirement> getRequirements(String namespace) {
return Converters.asListRequirement(getDeclaredRequirements(namespace));
}
/**
* Returns the {@link ModuleRevisions revisions} for this revision.
* @return the {@link ModuleRevisions revisions} for this revision.
*/
public ModuleRevisions getRevisions() {
return revisions;
}
boolean isCurrent() {
return this.equals(revisions.getCurrentRevision());
}
@Override
public String toString() {
List<ModuleCapability> identities = getModuleCapabilities(IdentityNamespace.IDENTITY_NAMESPACE);
if (identities.isEmpty())
return super.toString();
return identities.get(0).toString();
}
static <V> String toString(Map<String, V> map, boolean directives) {
if (map.size() == 0)
return ""; //$NON-NLS-1$
String assignment = directives ? ":=" : "="; //$NON-NLS-1$ //$NON-NLS-2$
Set<Entry<String, V>> set = map.entrySet();
StringBuffer sb = new StringBuffer();
for (Entry<String, V> entry : set) {
sb.append("; "); //$NON-NLS-1$
String key = entry.getKey();
Object value = entry.getValue();
if (value instanceof List) {
@SuppressWarnings("unchecked")
List<Object> list = (List<Object>) value;
if (list.size() == 0)
continue;
Object component = list.get(0);
String className = component.getClass().getName();
String type = className.substring(className.lastIndexOf('.') + 1);
sb.append(key).append(':').append("List<").append(type).append(">").append(assignment).append('"'); //$NON-NLS-1$ //$NON-NLS-2$
for (Object object : list)
sb.append(object).append(',');
sb.setLength(sb.length() - 1);
sb.append('"');
} else {
String type = ""; //$NON-NLS-1$
if (!(value instanceof String)) {
String className = value.getClass().getName();
type = ":" + className.substring(className.lastIndexOf('.') + 1); //$NON-NLS-1$
}
sb.append(key).append(type).append(assignment).append('"').append(value).append('"');
}
}
return sb.toString();
}
}
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