LibraryArtefact.java

/*******************************************************************************
 * Copyright (c) 2007, 2012 SpringSource
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     SpringSource - initial API and implementation
 *******************************************************************************/

package org.eclipse.virgo.ide.runtime.core.artefacts;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.virgo.ide.bundlerepository.domain.BundleImport;
import org.eclipse.virgo.ide.bundlerepository.domain.OsgiVersion;

/**
 * A library stored in BRITS. A library is a collection of bundles grouped under a common name, id, and version.
 *
 * @author acolyer
 */
public class LibraryArtefact extends Artefact implements Comparable<LibraryArtefact> {

    /**
     * The bundle imports declared by the library
     */
    private List<BundleImport> bundleImports;

    /** for persistence use only */
    protected LibraryArtefact() {
    }

    /**
     * Create a new LibraryArtefact. This will *not* be stored in the database unless explicitly stored using the
     * ArtefactRepository. Storing a library artefact does *not* the bundles it contains - these must be stored in the
     * database independently first.
     *
     * @param name human readable name of the library (e.g. "Spring Framework")
     * @param symbolicName identifying name of the library (e.g. "org.springframework")
     * @param version the library version, following normal OSGi conventions
     * @param organisationName the organisation name as found in ivy.xml
     * @param moduleName the module name as found in ivy.xml
     * @param bundles the bundles that are part of this library
     */
    public LibraryArtefact(String name, String symbolicName, OsgiVersion version, String organisationName, String moduleName) {
        super(name, symbolicName, version, organisationName, moduleName);
        this.bundleImports = new ArrayList<BundleImport>();
    }

    /**
     * Add a new import to this library
     *
     * @param imp the import to add
     */
    public void addBundleImport(BundleImport imp) {
        this.bundleImports.add(imp);
    }

    /**
     * The set of bundles contained in this library.
     */
    public List<BundleImport> getBundleImports() {
        return this.bundleImports;
    }

    /**
     * The relative URL needed to download this library from S3
     */
    @Override
    public String getRelativeUrlPath() {
        return "/" + getOrganisationName() + "/" + getModuleName() + "/" + getVersion() + "/" + getModuleName() + "-" + getVersion() + ".libd";
    }

    @Override
    public String toString() {
        StringBuilder builder = new StringBuilder();
        builder.append("Library-Name: ");
        builder.append(this.getName());
        builder.append("\n");
        builder.append("Library-SymbolicName: ");
        builder.append(this.getSymbolicName());
        builder.append("\n");
        builder.append("Library-Version: ");
        builder.append(this.getVersion());
        builder.append("\n");
        builder.append("Library bundles: \n");
        if (this.bundleImports != null) {
            for (BundleImport b : this.bundleImports) {
                builder.append("  ");
                builder.append(b.getSymbolicName());
                builder.append(" v.");
                builder.append(b.getVersionRange());
                builder.append("\n");
            }
        }
        return builder.toString();
    }

    /**
     * Sort by symbolic name, and then reverse version. See the javadoc for the TreeSet class to understand the
     * implications of this wrt. Set semantics. Since equality is based on id, and compareTo is based on symbolicName
     * and version, full Set semantics when using LibraryArtefacts in a TreeSet are not guaranteed.
     */
    public int compareTo(LibraryArtefact other) {
        if (this == other) {
            return 0;
        }
        if (other == null) {
            return 0;
        }
        if (this.getSymbolicName().equals(other.getSymbolicName())) {
            return other.getVersion().compareTo(this.getVersion());
        } else {
            return this.getSymbolicName().compareTo(other.getSymbolicName());
        }
    }

    /**
     * Returns LIBRARY;
     *
     * @see org.eclipse.virgo.ide.runtime.core.artefacts.IArtefact#getType()
     */
    public ArtefactType getArtefactType() {
        return ArtefactType.LIBRARY;
    }
}