ingo@119: /* ingo@119: * Copyright (c) 2011 by Intevation GmbH ingo@119: * ingo@119: * This program is free software under the LGPL (>=v2.1) ingo@119: * Read the file LGPL.txt coming with the software for details ingo@119: * or visit http://www.gnu.org/licenses/ if it does not exist. ingo@119: */ ingo@119: package de.intevation.artifactdatabase; ingo@119: ingo@119: import java.io.IOException; ingo@119: import java.io.OutputStream; ingo@119: import java.util.ArrayList; ingo@119: import java.util.Date; ingo@119: import java.util.HashMap; ingo@119: import java.util.List; ingo@119: import java.util.Map; ingo@119: ingo@119: import org.apache.log4j.Logger; ingo@119: ingo@119: import org.w3c.dom.Document; ingo@119: ingo@119: import de.intevation.artifacts.Artifact; ingo@119: import de.intevation.artifacts.ArtifactCollection; ingo@119: import de.intevation.artifacts.ArtifactCollectionFactory; ingo@119: import de.intevation.artifacts.CallContext; ingo@119: import de.intevation.artifacts.User; ingo@119: ingo@119: ingo@119: /** ingo@119: * Trivial implementation of an artifact collection. Useful to be subclassed. ingo@119: * @author Ingo Weinzierl ingo@119: */ ingo@119: public class DefaultArtifactCollection ingo@119: implements ArtifactCollection ingo@119: { ingo@119: /** The logger used in this class.*/ ingo@119: private static Logger logger = ingo@119: Logger.getLogger(DefaultArtifactCollection.class); ingo@119: ingo@119: /** ingo@119: * The identifier of the collection. ingo@119: */ ingo@119: protected String identifier; ingo@119: ingo@119: /** sascha@159: * The identifier of the collection. sascha@159: */ sascha@159: protected String name; sascha@159: sascha@159: /** ingo@119: * The owner of this collection. ingo@119: */ ingo@119: protected User user; ingo@119: ingo@119: /** ingo@119: * The artifacts stored in this collection. ingo@119: */ ingo@119: protected List artifacts; ingo@119: ingo@119: /** ingo@119: * The attributes used for the artifacts stored in this collection. The key ingo@119: * of this map represents the identifier of the artifact which the attribute ingo@119: * belong to. ingo@119: */ ingo@119: protected Map attributes; ingo@119: ingo@119: /** The creation time of this collection.*/ ingo@119: protected Date creationTime; ingo@119: ingo@119: ingo@119: /** ingo@119: * Default constructor. ingo@119: */ ingo@119: public DefaultArtifactCollection() { ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * When created by a factory this method is called to ingo@119: * initialize the collection. ingo@119: * @param identifier The identifier from collection database ingo@119: * @param factory The factory which created this collection. ingo@119: * @param context The global context of the runtime system. ingo@119: * @param data The data which can be use to setup a collection with ingo@119: * more details. ingo@119: */ ingo@119: public void setup( ingo@119: String identifier, sascha@170: String name, sascha@170: Date creationTime, ingo@119: ArtifactCollectionFactory factory, ingo@119: Object context, ingo@119: Document data) ingo@119: { ingo@119: logger.debug("DefaultArtifactCollection.setup: " + identifier); ingo@119: ingo@119: artifacts = new ArrayList(); ingo@119: attributes = new HashMap(); ingo@119: ingo@119: setIdentifier(identifier); sascha@170: setName(name); sascha@170: setCreationTime(creationTime); ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Set a new identifier for this collection. ingo@119: * @param identifier New identifier for this collection. ingo@119: */ ingo@119: public void setIdentifier(String identifier) { ingo@119: this.identifier = identifier; ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Identify this collection. ingo@119: * @return Returns unique string to identify this collection globally. ingo@119: */ ingo@119: public String identifier() { ingo@119: return identifier; ingo@119: } ingo@119: ingo@119: ingo@119: /** sascha@159: * Name of this collection. sascha@159: * @return Returns the name of this collection sascha@159: */ sascha@159: public String getName() { sascha@159: return name; sascha@159: } sascha@159: sascha@159: /** sascha@159: * Name of this collection. sascha@159: * @return Returns the name of this collection sascha@159: */ sascha@159: public void setName(String name) { sascha@159: this.name = name; sascha@159: } sascha@159: sascha@159: sascha@159: /** ingo@119: * Set a new owner of this collection. ingo@119: * @param user New owner for this collection. ingo@119: */ ingo@119: public void setUser(User user) { ingo@119: this.user = user; ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Identify the owner of the collection. ingo@119: * @return Returns owner of the collection. ingo@119: */ ingo@119: public User getUser() { ingo@119: return user; ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Returns the creation time of the collection. ingo@119: * ingo@119: * @return the creation time of the collection. ingo@119: */ ingo@119: public Date getCreationTime() { ingo@119: return creationTime; ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Sets the creation time of the collection. ingo@119: * ingo@119: * @param creationTime The new creation time. ingo@119: */ ingo@119: public void setCreationTime(Date creationTime) { ingo@119: this.creationTime = creationTime; ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Called from artifact database when an artifact is ingo@119: * going to be removed from system. ingo@119: * @param context The global context of the runtime system. ingo@119: */ ingo@119: public void endOfLife(Object context) { ingo@119: logger.debug("DefaultArtifactCollection.endOfLife"); ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Internal hash of this collection. ingo@119: * @return Returns hash that should stay the same if the internal ingo@119: * value has not changed. Useful for caching ingo@119: */ ingo@119: public String hash() { ingo@119: logger.debug("DefaultArtifactCollection.hash"); ingo@119: ingo@119: return String.valueOf(hashCode()); ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Called from artifact database before an artifact is ingo@119: * going to be exported as xml document. ingo@119: * @param context The global context of the runtime system. ingo@119: */ ingo@119: public void cleanup(Object context) { ingo@119: logger.debug("DefaultArtifactCollection.cleanup"); ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Adds a new artifact to this collection. ingo@119: * ingo@119: * @param artifact The new artifact. ingo@119: * @param attribute The attributes used for this artifact. ingo@119: * @param context The CallContext. ingo@119: */ ingo@119: public void addArtifact( ingo@119: Artifact artifact, ingo@119: Document attribute, ingo@119: CallContext context) ingo@119: { ingo@119: logger.debug("DefaultArtifactCollection.addArtifact"); ingo@119: ingo@119: artifacts.add(artifact); ingo@119: attributes.put(artifact.identifier(), attribute); ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Removes the given artifact from this collection. ingo@119: * ingo@119: * @param artifact The artifact that should be removed. ingo@119: * @param context The CallContext. ingo@119: */ ingo@119: public void removeArtifact(Artifact artifact, CallContext context) { ingo@119: logger.debug("DefaultArtifactCollection.removeArtifact"); ingo@119: ingo@119: if (artifact == null) { ingo@119: return; ingo@119: } ingo@119: ingo@119: artifacts.remove(artifact); ingo@119: attributes.remove(artifact.identifier()); ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Returns a list of artifacts that are stored in this collection. ingo@119: * ingo@119: * @param context The CallContext. ingo@119: * ingo@119: * @return the list of artifacts stored in this collection. ingo@119: */ ingo@119: public Artifact[] getArtifacts(CallContext context) { ingo@119: logger.debug("DefaultArtifactCollection.getArtifacts"); ingo@119: ingo@119: return (Artifact[]) artifacts.toArray(); ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Returns the attribute document for the given artifact. ingo@119: * ingo@119: * @param artifact The artifact. ingo@119: * @param context The CallContext. ingo@119: * ingo@119: * @return a document that contains the attributes of the artifact. ingo@119: */ ingo@119: public Document getAttribute(Artifact artifact, CallContext context) { ingo@119: logger.debug("DefaultArtifactCollection.getAttribute"); ingo@119: ingo@119: return attributes.get(artifact.identifier()); ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Set the attribute for the given artifact. ingo@119: * ingo@119: * @param artifact The artifact of the attribute. ingo@119: * @param document The new attribute of the artifact. ingo@119: * @param context The CallContext. ingo@119: */ ingo@119: public void setAttribute( ingo@119: Artifact artifact, ingo@119: Document document, ingo@119: CallContext context) ingo@119: { ingo@119: logger.debug("DefaultArtifactCollection.setAttribute"); ingo@119: ingo@119: attributes.put(artifact.identifier(), document); ingo@119: } ingo@119: ingo@119: ingo@119: /** ingo@119: * Produce output for this collection. ingo@119: * @param format Specifies the format of the output. ingo@119: * @param out Stream to write the result data to. ingo@119: * @param context The global context of the runtime system. ingo@119: * @throws IOException Thrown if an I/O occurs. ingo@119: */ ingo@119: public void out(Document format, OutputStream out, CallContext context) ingo@119: throws IOException ingo@119: { ingo@119: logger.debug("DefaultArtifactCollection.out"); ingo@119: } ingo@119: } ingo@119: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :