ReleaseIdImpl.java

/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * 
 *      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.drools.compiler.kproject;

import java.io.Externalizable;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.io.StringReader;
import java.util.Properties;

import org.drools.core.util.StringUtils;
import org.kie.api.builder.ReleaseId;

public class ReleaseIdImpl implements ReleaseId, Externalizable {

    private String groupId;
    private String artifactId;
    private String version;
    private String type;

    private String snapshotVersion;

    public ReleaseIdImpl() {
    }

    public ReleaseIdImpl(String releaseId) {
        String[] split = releaseId.split(":");
        this.groupId = split[0];
        this.artifactId = split[1];
        this.version = split[2];
    }

    public ReleaseIdImpl(String groupId, String artifactId, String version) {
        this(groupId, artifactId, version, "jar");
    }

    public ReleaseIdImpl(String groupId, String artifactId, String version, String type) {
        this.groupId = groupId;
        this.artifactId = artifactId;
        this.version = version;
        this.type = type;
    }

    public String getGroupId() {
        return groupId;
    }

    public String getArtifactId() {
        return artifactId;
    }

    public String getVersion() {
        return version;
    }

    public void setGroupId(String groupId) {
        this.groupId = groupId;
    }

    public void setArtifactId(String artifactId) {
        this.artifactId = artifactId;
    }

    public void setVersion(String version) {
        this.version = version;
    }

    @Override
    public String toString() {
        return type == null || type.equals( "jar" ) ?
               groupId + ":" + artifactId + ":" + version :
               groupId + ":" + artifactId + ":" + type + ":" + version;
    }

    public String toExternalForm() {
        return toString();
    }

    public String getPomXmlPath() {
        return getPomXmlPath(this);
    }

    public String getPomPropertiesPath() {
        return getPomPropertiesPath(this);
    }

    public static String getPomXmlPath(ReleaseId releaseId) {
        return "META-INF/maven/" + releaseId.getGroupId() + "/" + releaseId.getArtifactId() + "/pom.xml";
    }
    
    public static String getPomPropertiesPath(ReleaseId releaseId) {
        return "META-INF/maven/" + releaseId.getGroupId() + "/" + releaseId.getArtifactId() + "/pom.properties";
    }

    public String getCompilationCachePathPrefix() {
        //return "META-INF/maven/" + groupId + "/" + artifactId + "/";
        return "META-INF/";
    }

    public boolean isSnapshot() {
        return version.endsWith("-SNAPSHOT");
    }

    public static ReleaseId fromPropertiesString(String path) {
        Properties props = new Properties();
        try {
            props.load(new StringReader(path));
            return getReleaseIdFromProperties(props, path);
        } catch (IOException e) {
            throw new RuntimeException("pom.properties was malformed\n" + path, e);
        }
    }
    
    public static ReleaseId fromPropertiesStream(InputStream stream, String path) {
        Properties props = new Properties();
        try {
            props.load(stream);
            return getReleaseIdFromProperties(props, path);
        } catch (IOException e) {
            throw new RuntimeException("pom.properties was malformed\n" + path, e);
        }
    }

    private static ReleaseId getReleaseIdFromProperties(Properties props, String path) {
        String groupId = props.getProperty("groupId");
        String artifactId = props.getProperty("artifactId");
        String version = props.getProperty("version");
        if (StringUtils.isEmpty(groupId) || StringUtils.isEmpty(artifactId) || StringUtils.isEmpty(version)) {
            throw new RuntimeException("pom.properties exists but ReleaseId content is malformed\n" + path);
        }
        return new ReleaseIdImpl(groupId, artifactId, version);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        ReleaseIdImpl that = (ReleaseIdImpl) o;
        return equalsIgnoreNull(artifactId, that.artifactId) && equalsIgnoreNull(groupId, that.groupId) &&
               equalsIgnoreNull(version, that.version) && equalsIgnoreNull(type, that.type);
    }

    private boolean equalsIgnoreNull(Object o1, Object o2) {
        return o1 != null ? o1.equals(o2) : o2 == null;
    }

    @Override
    public int hashCode() {
        int result = groupId != null ? groupId.hashCode() : 0;
        result = 29 * result + (artifactId != null ? artifactId.hashCode() : 0);
        result = 31 * result + (version != null ? version.hashCode() : 0);
        result = 37 * result + (type != null ? type.hashCode() : 0);
        return result;
    }

    public String getSnapshotVersion() {
        return snapshotVersion;
    }

    public void setSnapshotVersion(String snapshotVersion) {
        this.snapshotVersion = snapshotVersion;
    }

    @Override
    public void writeExternal(ObjectOutput out) throws IOException {
        out.writeObject(groupId);
        out.writeObject(artifactId);
        out.writeObject(version);
        out.writeObject(type);
    }

    @Override
    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        groupId = (String) in.readObject();
        artifactId = (String) in.readObject();
        version = (String) in.readObject();
        type = (String) in.readObject();
    }
}