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/**
* Copyright 2007 Google Inc.
*
* 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 com.tonicsystems.jarjar.dependencies;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import javax.annotation.Nonnull;
public abstract class AbstractDependencyHandler implements DependencyHandler {
protected final Level level;
private final Set<Pair<String>> seen = new HashSet<Pair<String>>();
protected AbstractDependencyHandler(Level level) {
this.level = level;
}
@Override
public void handle(Dependency from, Dependency to) throws IOException {
Pair<String> pair;
if (level == Level.JAR) {
pair = new Pair<String>(from.getClassPath(), to.getClassPath());
} else {
pair = new Pair<String>(from.getClassName(), to.getClassName());
}
if (seen.add(pair))
handle(pair.getLeft(), pair.getRight());
}
protected abstract void handle(@Nonnull String from, @Nonnull String to) throws IOException;
@Override
public void handleStart() throws IOException {
}
@Override
public void handleEnd() throws IOException {
}
}
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