io.joshworks.snappy.maven.ArtifactsLibraries Maven / Gradle / Ivy

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/*
 * Copyright 2012-2014 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 io.joshworks.snappy.maven;

import io.joshworks.snappy.maven.tools.Libraries;
import io.joshworks.snappy.maven.tools.Library;
import io.joshworks.snappy.maven.tools.LibraryCallback;
import io.joshworks.snappy.maven.tools.LibraryScope;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.model.Dependency;
import org.apache.maven.plugin.logging.Log;

import java.io.IOException;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

/**
 * {@link Libraries} backed by Maven {@link Artifact}s.
 *
 * @author Phillip Webb
 * @author Andy Wilkinson
 */
public class ArtifactsLibraries implements Libraries {

    private static final Map SCOPES;

    static {
        Map scopes = new HashMap<>();
        scopes.put(Artifact.SCOPE_COMPILE, LibraryScope.COMPILE);
        scopes.put(Artifact.SCOPE_RUNTIME, LibraryScope.RUNTIME);
        scopes.put(Artifact.SCOPE_PROVIDED, LibraryScope.PROVIDED);
        SCOPES = Collections.unmodifiableMap(scopes);
    }

    private final Set artifacts;

    private final Collection unpacks;

    private final Log log;

    public ArtifactsLibraries(Set artifacts, Collection unpacks,
                              Log log) {
        this.artifacts = artifacts;
        this.unpacks = unpacks;
        this.log = log;
    }

    @Override
    public void doWithLibraries(LibraryCallback callback) throws IOException {
        Set duplicates = getDuplicates(this.artifacts);
        for (Artifact artifact : this.artifacts) {
            LibraryScope scope = SCOPES.get(artifact.getScope());
            if (scope != null && artifact.getFile() != null) {
                String name = artifact.getFile().getName();
                if (duplicates.contains(name)) {
                    this.log.debug("Duplicate found: " + name);
                    name = artifact.getGroupId() + "-" + name;
                    this.log.debug("Renamed to: " + name);
                }
                callback.library(new Library(name, artifact.getFile(), scope,
                        isUnpackRequired(artifact)));
            }
        }
    }

    private Set getDuplicates(Set artifacts) {
        Set duplicates = new HashSet();
        Set seen = new HashSet();
        for (Artifact artifact : artifacts) {
            if (artifact.getFile() != null && !seen.add(artifact.getFile().getName())) {
                duplicates.add(artifact.getFile().getName());
            }
        }
        return duplicates;
    }

    private boolean isUnpackRequired(Artifact artifact) {
        if (this.unpacks != null) {
            for (Dependency unpack : this.unpacks) {
                if (artifact.getGroupId().equals(unpack.getGroupId())
                        && artifact.getArtifactId().equals(unpack.getArtifactId())) {
                    return true;
                }
            }
        }
        return false;
    }

}