org.metawidget.inspector.seam.SeamInspectorConfig Maven / Gradle / Ivy
// Metawidget
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package org.metawidget.inspector.seam;
import java.io.InputStream;
import org.metawidget.config.iface.NeedsResourceResolver;
import org.metawidget.config.iface.ResourceResolver;
import org.metawidget.config.impl.SimpleResourceResolver;
import org.metawidget.util.simple.ObjectUtils;
/**
* Configures a SeamInspector prior to use. Once instantiated, Inspectors are immutable.
*
* Handles specifying components.xml file input.
*
* @author Richard Kennard
*/
public class SeamInspectorConfig
implements NeedsResourceResolver {
//
// Private members
//
private ResourceResolver mResourceResolver;
private InputStream mComponentsInputStream;
//
// Public methods
//
/**
* Sets the InputStream of components.xml.
*
* @return this, as part of a fluent interface
*/
public SeamInspectorConfig setComponentsInputStream( InputStream stream ) {
mComponentsInputStream = stream;
// Fluent interface
return this;
}
public void setResourceResolver( ResourceResolver resourceResolver ) {
mResourceResolver = resourceResolver;
}
@Override
public boolean equals( Object that ) {
if ( this == that ) {
return true;
}
if ( !ObjectUtils.nullSafeClassEquals( this, that )) {
return false;
}
if ( !ObjectUtils.nullSafeEquals( mResourceResolver, ( (SeamInspectorConfig) that ).mResourceResolver ) ) {
return false;
}
if ( !ObjectUtils.nullSafeEquals( mComponentsInputStream, ( (SeamInspectorConfig) that ).mComponentsInputStream ) ) {
return false;
}
return true;
}
@Override
public int hashCode() {
int hashCode = 1;
hashCode = 31 * hashCode + ObjectUtils.nullSafeHashCode( mResourceResolver );
hashCode = 31 * hashCode + ObjectUtils.nullSafeHashCode( mComponentsInputStream );
return hashCode;
}
//
// Protected methods
//
protected InputStream getComponentsInputStream() {
if ( mComponentsInputStream != null ) {
return mComponentsInputStream;
}
return getResourceResolver().openResource( "components.xml" );
}
protected ResourceResolver getResourceResolver() {
if ( mResourceResolver == null ) {
// Support programmatic configuration (ie. mResourceResolver is specified automatically
// by ConfigReader when using metawidget.xml, but is generally not set manually when
// people are creating Inspectors by hand)
return new SimpleResourceResolver();
}
return mResourceResolver;
}
}