com.github.hilcode.versionator.ModelWriter.java Source code

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Here is the source code for com.github.hilcode.versionator.ModelWriter.java

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/*
 * Copyright (C) 2016 H.C. Wijbenga
 *
 * 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.github.hilcode.versionator;

import java.io.File;
import java.io.IOException;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import com.google.common.io.Files;

public class ModelWriter {
    private final VersionSetter versionSetter;

    private final PropertySetter propertySetter;

    public ModelWriter(final VersionSetter versionSetter, final PropertySetter propertySetter) {
        Preconditions.checkNotNull(versionSetter, "Missing 'versionSetter'.");
        Preconditions.checkNotNull(propertySetter, "Missing 'propertySetter'.");
        this.versionSetter = versionSetter;
        this.propertySetter = propertySetter;
    }

    public void write(final Model original, final Model result) {
        final File tempDir = Files.createTempDir();
        tempDir.deleteOnExit();
        final ImmutableMap.Builder<Pom, File> pomToFileMapBuilder = ImmutableMap.builder();
        final Zipper<Pom> pomZipper = Zipper.BUILDER.zip(original.poms, result.poms);
        for (final Tuple._2<Pom, Pom> tuple : pomZipper) {
            final Pom originalPom = tuple._1;
            final Pom resultPom = tuple._2;
            if (originalPom != resultPom) {
                final File pomFile = new File(tempDir, originalPom.gav.groupArtifact.toText() + ".xml");
                pomToFileMapBuilder.put(originalPom, pomFile);
                copy(originalPom.file, pomFile);
                if (originalPom.parent.isPresent()) {
                    this.versionSetter.updateAll(pomFile, resultPom.parent.get().gav);
                }
                for (final Dependency dependency : resultPom.dependencies) {
                    this.versionSetter.updateAll(pomFile, dependency.gav);
                }
                for (final Property property : resultPom.properties) {
                    this.propertySetter.updateProperty(pomFile, property);
                }
                this.versionSetter.updateAll(pomFile, resultPom.gav);
                copy(pomFile, originalPom.file);
                pomFile.delete();
            }
        }
    }

    public static final void copy(final File fromFile, final File toFile) {
        try {
            Files.copy(fromFile, toFile);
        } catch (final IOException e) {
            throw new IllegalStateException(e.getMessage(), e);
        }
    }
}