/*
* Copyright 2016 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.groovy.scripts.internal;
import com.google.common.hash.HashCode;
import groovy.lang.Script;
import org.codehaus.groovy.ast.ClassNode;
import org.gradle.api.Action;
import org.gradle.api.internal.cache.CrossBuildInMemoryCache;
import org.gradle.api.internal.cache.CrossBuildInMemoryCacheFactory;
import org.gradle.api.internal.hash.FileHasher;
import org.gradle.api.internal.initialization.loadercache.ClassLoaderId;
import org.gradle.groovy.scripts.ScriptSource;
import org.gradle.internal.Cast;
public class CrossBuildInMemoryCachingScriptClassCache {
private final CrossBuildInMemoryCache<ScriptCacheKey, CachedCompiledScript> cachedCompiledScripts;
private final FileHasher hasher;
public CrossBuildInMemoryCachingScriptClassCache(FileHasher hasher, CrossBuildInMemoryCacheFactory cacheFactory) {
this.hasher = hasher;
cachedCompiledScripts = cacheFactory.newCache();
}
public <T extends Script, M> CompiledScript<T, M> getOrCompile(ScriptSource source, ClassLoader classLoader,
ClassLoaderId classLoaderId,
CompileOperation<M> operation,
Class<T> scriptBaseClass,
Action<? super ClassNode> verifier,
ScriptClassCompiler delegate) {
ScriptCacheKey key = new ScriptCacheKey(source.getClassName(), classLoader, operation.getId());
CachedCompiledScript cached = cachedCompiledScripts.get(key);
HashCode hash = hasher.hash(source.getResource());
if (cached != null) {
if (hash.equals(cached.hash)) {
return Cast.uncheckedCast(cached.compiledScript);
}
}
CompiledScript<T, M> compiledScript = delegate.compile(source, classLoader, classLoaderId, operation, scriptBaseClass, verifier);
cachedCompiledScripts.put(key, new CachedCompiledScript(hash, compiledScript));
return compiledScript;
}
private static class CachedCompiledScript {
private final HashCode hash;
private final CompiledScript<?, ?> compiledScript;
private CachedCompiledScript(HashCode hash, CompiledScript<?, ?> compiledScript) {
this.hash = hash;
this.compiledScript = compiledScript;
}
}
}