gradle-master/subprojects/platform-native/src/main/java/org/gradle/nativeplatform/internal/resolve/ChainedLibraryBinaryLocator.java
/*
 * 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.nativeplatform.internal.resolve;

import org.gradle.api.DomainObjectSet;
import org.gradle.nativeplatform.NativeLibraryBinary;

import javax.annotation.Nullable;
import java.util.ArrayList;
import java.util.List;

public class ChainedLibraryBinaryLocator implements LibraryBinaryLocator {
    private final List<LibraryBinaryLocator> locators = new ArrayList<LibraryBinaryLocator>();

    public ChainedLibraryBinaryLocator(List<? extends LibraryBinaryLocator> locators) {
        this.locators.addAll(locators);
    }

    @Nullable
    @Override
    public DomainObjectSet<NativeLibraryBinary> getBinaries(LibraryIdentifier library) {
        for (LibraryBinaryLocator locator : locators) {
            DomainObjectSet<NativeLibraryBinary> binaries = locator.getBinaries(library);
            if (binaries != null) {
                return binaries;
            }
        }
        return null;
    }
}
