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/*******************************************************************************
* Copyright (c) 2006, 2016 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Rob Harrop - SpringSource Inc. (bug 247522)
*******************************************************************************/
package org.eclipse.osgi.internal.resolver;
import java.util.*;
import org.eclipse.osgi.internal.framework.FilterImpl;
import org.eclipse.osgi.service.resolver.*;
import org.osgi.framework.*;
import org.osgi.resource.Namespace;
public class GenericSpecificationImpl extends VersionConstraintImpl implements GenericSpecification {
private Filter matchingFilter;
private String type = GenericDescription.DEFAULT_TYPE;
private int resolution = 0;
private GenericDescription[] suppliers;
private Map<String, Object> attributes;
private Map<String, String> arbitraryDirectives;
/*
* Indicates that a generic constraint was from converting the BREE header
*/
public static final int RESOLUTION_FROM_BREE = 0x04;
public String getMatchingFilter() {
synchronized (this.monitor) {
return matchingFilter == null ? null : matchingFilter.toString();
}
}
void setMatchingFilter(String matchingFilter, boolean matchName) throws InvalidSyntaxException {
synchronized (this.monitor) {
String name = getName();
if (matchName && name != null && !"*".equals(name)) { //$NON-NLS-1$
String nameFilter = "(" + getType() + "=" + getName() + ")"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
matchingFilter = matchingFilter == null ? nameFilter : "(&" + nameFilter + matchingFilter + ")"; //$NON-NLS-1$ //$NON-NLS-2$
}
this.matchingFilter = matchingFilter == null ? null : FilterImpl.newInstance(matchingFilter);
}
}
void setMatchingFilter(Filter matchingFilter) {
synchronized (this.monitor) {
this.matchingFilter = matchingFilter;
}
}
@Override
public boolean isSatisfiedBy(BaseDescription supplier) {
if (!(supplier instanceof GenericDescription))
return false;
GenericDescription candidate = (GenericDescription) supplier;
if (!getType().equals(candidate.getType()))
return false;
// Note that names and versions are only matched by including them in the filter
return matchingFilter == null || matchingFilter.match(candidate.getAttributes());
}
@Override
protected boolean hasMandatoryAttributes(String[] mandatory) {
return true;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(Constants.REQUIRE_CAPABILITY).append(": ").append(getType()); //$NON-NLS-1$
if (matchingFilter != null)
sb.append("; filter=\"").append(getMatchingFilter()).append('"'); //$NON-NLS-1$
return sb.toString();
}
public String getType() {
synchronized (this.monitor) {
return type;
}
}
void setType(String type) {
synchronized (this.monitor) {
if (type == null || type.equals(GenericDescription.DEFAULT_TYPE))
this.type = GenericDescription.DEFAULT_TYPE;
else
this.type = type;
}
}
public int getResolution() {
synchronized (this.monitor) {
return resolution;
}
}
@Override
public boolean isResolved() {
synchronized (this.monitor) {
return suppliers != null && suppliers.length > 0;
}
}
void setResolution(int resolution) {
synchronized (this.monitor) {
this.resolution = resolution;
}
}
@Override
public BaseDescription getSupplier() {
synchronized (this.monitor) {
return suppliers == null || suppliers.length == 0 ? null : suppliers[0];
}
}
@Override
protected void setSupplier(BaseDescription supplier) {
synchronized (this.monitor) {
if (supplier == null) {
suppliers = null;
return;
}
int len = suppliers == null ? 0 : suppliers.length;
GenericDescription[] temp = new GenericDescription[len + 1];
if (suppliers != null)
System.arraycopy(suppliers, 0, temp, 0, len);
temp[len] = (GenericDescription) supplier;
suppliers = temp;
}
}
public GenericDescription[] getSuppliers() {
synchronized (this.monitor) {
return suppliers;
}
}
void setSupplers(GenericDescription[] suppliers) {
synchronized (this.monitor) {
this.suppliers = suppliers;
}
}
Map<String, Object> getAttributes() {
synchronized (this.monitor) {
return attributes;
}
}
@SuppressWarnings("unchecked")
void setAttributes(Map<String, ?> attributes) {
synchronized (this.monitor) {
this.attributes = (Map<String, Object>) attributes;
}
}
Map<String, String> getArbitraryDirectives() {
synchronized (this.monitor) {
return arbitraryDirectives;
}
}
@SuppressWarnings("unchecked")
void setArbitraryDirectives(Map<String, ?> directives) {
synchronized (this.monitor) {
this.arbitraryDirectives = (Map<String, String>) directives;
}
}
@Override
protected Map<String, String> getInternalDirectives() {
Map<String, String> result = new HashMap<>(2);
synchronized (this.monitor) {
if (arbitraryDirectives != null)
result.putAll(arbitraryDirectives);
if ((resolution & GenericSpecification.RESOLUTION_OPTIONAL) != 0)
result.put(Constants.RESOLUTION_DIRECTIVE, Constants.RESOLUTION_OPTIONAL);
if ((resolution & GenericSpecification.RESOLUTION_MULTIPLE) != 0)
result.put(Namespace.REQUIREMENT_CARDINALITY_DIRECTIVE, Namespace.CARDINALITY_MULTIPLE);
if (matchingFilter != null) {
result.put(Constants.FILTER_DIRECTIVE, matchingFilter.toString());
}
}
return result;
}
@Override
protected Map<String, Object> getInteralAttributes() {
synchronized (this.monitor) {
return attributes == null ? Collections.<String, Object> emptyMap() : new HashMap<>(attributes);
}
}
@Override
protected String getInternalNameSpace() {
return getType();
}
}
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