--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2010, 2013 Sonatype, Inc.
+ * 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:
+ * Sonatype, Inc. - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.aether.graph;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.eclipse.aether.artifact.Artifact;
+import org.eclipse.aether.repository.RemoteRepository;
+import org.eclipse.aether.version.Version;
+import org.eclipse.aether.version.VersionConstraint;
+
+/**
+ * A node within a dependency graph.
+ */
+public final class DefaultDependencyNode
+ implements DependencyNode
+{
+
+ private List<DependencyNode> children;
+
+ private Dependency dependency;
+
+ private Artifact artifact;
+
+ private List<? extends Artifact> relocations;
+
+ private Collection<? extends Artifact> aliases;
+
+ private VersionConstraint versionConstraint;
+
+ private Version version;
+
+ private byte managedBits;
+
+ private List<RemoteRepository> repositories;
+
+ private String context;
+
+ private Map<Object, Object> data;
+
+ /**
+ * Creates a new node with the specified dependency.
+ *
+ * @param dependency The dependency associated with this node, may be {@code null} for a root node.
+ */
+ public DefaultDependencyNode( Dependency dependency )
+ {
+ this.dependency = dependency;
+ artifact = ( dependency != null ) ? dependency.getArtifact() : null;
+ children = new ArrayList<DependencyNode>( 0 );
+ aliases = relocations = Collections.emptyList();
+ repositories = Collections.emptyList();
+ context = "";
+ data = Collections.emptyMap();
+ }
+
+ /**
+ * Creates a new root node with the specified artifact as its label. Note that the new node has no dependency, i.e.
+ * {@link #getDependency()} will return {@code null}. Put differently, the specified artifact will not be subject to
+ * dependency collection/resolution.
+ *
+ * @param artifact The artifact to use as label for this node, may be {@code null}.
+ */
+ public DefaultDependencyNode( Artifact artifact )
+ {
+ this.artifact = artifact;
+ children = new ArrayList<DependencyNode>( 0 );
+ aliases = relocations = Collections.emptyList();
+ repositories = Collections.emptyList();
+ context = "";
+ data = Collections.emptyMap();
+ }
+
+ /**
+ * Creates a mostly shallow clone of the specified node. The new node has its own copy of any custom data and
+ * initially no children.
+ *
+ * @param node The node to copy, must not be {@code null}.
+ */
+ public DefaultDependencyNode( DependencyNode node )
+ {
+ dependency = node.getDependency();
+ artifact = node.getArtifact();
+ children = new ArrayList<DependencyNode>( 0 );
+ setAliases( node.getAliases() );
+ setRequestContext( node.getRequestContext() );
+ setManagedBits( node.getManagedBits() );
+ setRelocations( node.getRelocations() );
+ setRepositories( node.getRepositories() );
+ setVersion( node.getVersion() );
+ setVersionConstraint( node.getVersionConstraint() );
+ Map<?, ?> data = node.getData();
+ setData( data.isEmpty() ? null : new HashMap<Object, Object>( data ) );
+ }
+
+ public List<DependencyNode> getChildren()
+ {
+ return children;
+ }
+
+ public void setChildren( List<DependencyNode> children )
+ {
+ if ( children == null )
+ {
+ this.children = new ArrayList<DependencyNode>( 0 );
+ }
+ else
+ {
+ this.children = children;
+ }
+ }
+
+ public Dependency getDependency()
+ {
+ return dependency;
+ }
+
+ public Artifact getArtifact()
+ {
+ return artifact;
+ }
+
+ public void setArtifact( Artifact artifact )
+ {
+ if ( dependency == null )
+ {
+ throw new UnsupportedOperationException( "node does not have a dependency" );
+ }
+ dependency = dependency.setArtifact( artifact );
+ this.artifact = dependency.getArtifact();
+ }
+
+ public List<? extends Artifact> getRelocations()
+ {
+ return relocations;
+ }
+
+ /**
+ * Sets the sequence of relocations that was followed to resolve this dependency's artifact.
+ *
+ * @param relocations The sequence of relocations, may be {@code null}.
+ */
+ public void setRelocations( List<? extends Artifact> relocations )
+ {
+ if ( relocations == null || relocations.isEmpty() )
+ {
+ this.relocations = Collections.emptyList();
+ }
+ else
+ {
+ this.relocations = relocations;
+ }
+ }
+
+ public Collection<? extends Artifact> getAliases()
+ {
+ return aliases;
+ }
+
+ /**
+ * Sets the known aliases for this dependency's artifact.
+ *
+ * @param aliases The known aliases, may be {@code null}.
+ */
+ public void setAliases( Collection<? extends Artifact> aliases )
+ {
+ if ( aliases == null || aliases.isEmpty() )
+ {
+ this.aliases = Collections.emptyList();
+ }
+ else
+ {
+ this.aliases = aliases;
+ }
+ }
+
+ public VersionConstraint getVersionConstraint()
+ {
+ return versionConstraint;
+ }
+
+ /**
+ * Sets the version constraint that was parsed from the dependency's version declaration.
+ *
+ * @param versionConstraint The version constraint for this node, may be {@code null}.
+ */
+ public void setVersionConstraint( VersionConstraint versionConstraint )
+ {
+ this.versionConstraint = versionConstraint;
+ }
+
+ public Version getVersion()
+ {
+ return version;
+ }
+
+ /**
+ * Sets the version that was selected for the dependency's target artifact.
+ *
+ * @param version The parsed version, may be {@code null}.
+ */
+ public void setVersion( Version version )
+ {
+ this.version = version;
+ }
+
+ public void setScope( String scope )
+ {
+ if ( dependency == null )
+ {
+ throw new UnsupportedOperationException( "node does not have a dependency" );
+ }
+ dependency = dependency.setScope( scope );
+ }
+
+ public void setOptional( Boolean optional )
+ {
+ if ( dependency == null )
+ {
+ throw new UnsupportedOperationException( "node does not have a dependency" );
+ }
+ dependency = dependency.setOptional( optional );
+ }
+
+ public int getManagedBits()
+ {
+ return managedBits;
+ }
+
+ /**
+ * Sets a bit field indicating which attributes of this node were subject to dependency management.
+ *
+ * @param managedBits The bit field indicating the managed attributes or {@code 0} if dependency management wasn't
+ * applied.
+ */
+ public void setManagedBits( int managedBits )
+ {
+ this.managedBits = (byte) ( managedBits & 0x1F );
+ }
+
+ public List<RemoteRepository> getRepositories()
+ {
+ return repositories;
+ }
+
+ /**
+ * Sets the remote repositories from which this node's artifact shall be resolved.
+ *
+ * @param repositories The remote repositories to use for artifact resolution, may be {@code null}.
+ */
+ public void setRepositories( List<RemoteRepository> repositories )
+ {
+ if ( repositories == null || repositories.isEmpty() )
+ {
+ this.repositories = Collections.emptyList();
+ }
+ else
+ {
+ this.repositories = repositories;
+ }
+ }
+
+ public String getRequestContext()
+ {
+ return context;
+ }
+
+ public void setRequestContext( String context )
+ {
+ this.context = ( context != null ) ? context : "";
+ }
+
+ public Map<Object, Object> getData()
+ {
+ return data;
+ }
+
+ public void setData( Map<Object, Object> data )
+ {
+ if ( data == null )
+ {
+ this.data = Collections.emptyMap();
+ }
+ else
+ {
+ this.data = data;
+ }
+ }
+
+ public void setData( Object key, Object value )
+ {
+ if ( key == null )
+ {
+ throw new IllegalArgumentException( "key must not be null" );
+ }
+
+ if ( value == null )
+ {
+ if ( !data.isEmpty() )
+ {
+ data.remove( key );
+
+ if ( data.isEmpty() )
+ {
+ data = Collections.emptyMap();
+ }
+ }
+ }
+ else
+ {
+ if ( data.isEmpty() )
+ {
+ data = new HashMap<Object, Object>( 1, 2 ); // nodes can be numerous so let's be space conservative
+ }
+ data.put( key, value );
+ }
+ }
+
+ public boolean accept( DependencyVisitor visitor )
+ {
+ if ( visitor.visitEnter( this ) )
+ {
+ for ( DependencyNode child : children )
+ {
+ if ( !child.accept( visitor ) )
+ {
+ break;
+ }
+ }
+ }
+
+ return visitor.visitLeave( this );
+ }
+
+ @Override
+ public String toString()
+ {
+ Dependency dep = getDependency();
+ if ( dep == null )
+ {
+ return String.valueOf( getArtifact() );
+ }
+ return dep.toString();
+ }
+
+}
projects / gpl / argeo-jcr.git / blobdiff