/*
* Copyright 2013 the original author or authors.
*
* 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.gradle.plugin.use.internal;
import com.google.common.collect.ListMultimap;
import org.gradle.api.Transformer;
import org.gradle.groovy.scripts.ScriptSource;
import org.gradle.internal.exceptions.LocationAwareException;
import org.gradle.plugin.internal.PluginId;
import org.gradle.plugin.use.PluginDependenciesSpec;
import org.gradle.plugin.use.PluginDependencySpec;
import org.gradle.util.CollectionUtils;
import java.util.LinkedList;
import java.util.List;
import static org.gradle.util.CollectionUtils.collect;
/**
* The real delegate of the plugins {} block.
*
* The PluginUseScriptBlockTransformer interacts with this type.
*/
public class PluginDependenciesService {
private final ScriptSource scriptSource;
public PluginDependenciesService(ScriptSource scriptSource) {
this.scriptSource = scriptSource;
}
private static class DependencySpecImpl implements PluginDependencySpec {
private final PluginId id;
private String version;
private final int lineNumber;
private DependencySpecImpl(String id, int lineNumber) {
this.id = PluginId.of(id);
this.lineNumber = lineNumber;
}
public void version(String version) {
this.version = version;
}
}
private final List<DependencySpecImpl> specs = new LinkedList<DependencySpecImpl>();
public PluginDependenciesSpec createSpec(final int lineNumber) {
return new PluginDependenciesSpec() {
public PluginDependencySpec id(String id) {
DependencySpecImpl spec = new DependencySpecImpl(id, lineNumber);
specs.add(spec);
return spec;
}
};
}
public List<PluginRequest> getRequests() {
List<PluginRequest> pluginRequests = collect(specs, new Transformer<PluginRequest, DependencySpecImpl>() {
public PluginRequest transform(DependencySpecImpl original) {
return new DefaultPluginRequest(original.id, original.version, original.lineNumber, scriptSource);
}
});
ListMultimap<PluginId, PluginRequest> groupedById = CollectionUtils.groupBy(pluginRequests, new Transformer<PluginId, PluginRequest>() {
public PluginId transform(PluginRequest pluginRequest) {
return pluginRequest.getId();
}
});
// Check for duplicates
for (PluginId key : groupedById.keySet()) {
List<PluginRequest> pluginRequestsForId = groupedById.get(key);
if (pluginRequestsForId.size() > 1) {
PluginRequest first = pluginRequests.get(0);
PluginRequest second = pluginRequests.get(1);
InvalidPluginRequestException exception = new InvalidPluginRequestException(second, "Plugin with id '" + key + "' was already requested at line " + first.getLineNumber());
throw new LocationAwareException(exception, second.getScriptSource(), second.getLineNumber());
}
}
return pluginRequests;
}
}