org.eclipse.wb.internal.rcp.databinding.model.beans.bindables.BeanBindableInfo.java Source code

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Here is the source code for org.eclipse.wb.internal.rcp.databinding.model.beans.bindables.BeanBindableInfo.java

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/*******************************************************************************
 * Copyright (c) 2011 Google, 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:
 *    Google, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.wb.internal.rcp.databinding.model.beans.bindables;

import org.eclipse.wb.core.model.ObjectInfo;
import org.eclipse.wb.internal.core.databinding.model.IObserveInfo;
import org.eclipse.wb.internal.core.databinding.model.IObservePresentation;
import org.eclipse.wb.internal.core.databinding.model.reference.IReferenceProvider;
import org.eclipse.wb.internal.core.databinding.ui.ObserveType;
import org.eclipse.wb.internal.core.databinding.utils.CoreUtils;
import org.eclipse.wb.internal.rcp.databinding.model.BindableInfo;

import org.apache.commons.lang.StringUtils;

import java.util.Collections;
import java.util.List;

/**
 * Model for any <code>Java Beans</code> objects.
 * 
 * @author lobas_av
 * @coverage bindings.rcp.model.beans
 */
public class BeanBindableInfo extends BindableInfo {
    private final BeanSupport m_beanSupport;
    private final IObservePresentation m_presentation;
    protected List<BeanBindableInfo> m_children = Collections.emptyList();
    private List<PropertyBindableInfo> m_properties;
    private final IObserveInfo m_parent;

    ////////////////////////////////////////////////////////////////////////////
    //
    // Constructors
    //
    ////////////////////////////////////////////////////////////////////////////
    public BeanBindableInfo(BeanSupport beanSupport, IObserveInfo parent, Class<?> objectType,
            IReferenceProvider referenceProvider, ObjectInfo javaInfo) throws Exception {
        this(beanSupport, parent, objectType, referenceProvider, referenceProvider, javaInfo);
    }

    public BeanBindableInfo(BeanSupport beanSupport, IObserveInfo parent, Class<?> objectType,
            IReferenceProvider referenceProvider, IReferenceProvider presentationReferenceProvider,
            ObjectInfo javaInfo) throws Exception {
        this(beanSupport, parent, objectType, referenceProvider, new BeanBindablePresentation(objectType,
                presentationReferenceProvider, javaInfo, beanSupport.getBeanImage(objectType, javaInfo)));
    }

    public BeanBindableInfo(BeanSupport beanSupport, IObserveInfo parent, Class<?> objectType,
            IReferenceProvider referenceProvider, IObservePresentation presentation) {
        super(objectType, referenceProvider);
        m_beanSupport = beanSupport;
        m_parent = parent;
        m_presentation = presentation;
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // BindableInfo
    //
    ////////////////////////////////////////////////////////////////////////////
    public final BeanSupport getBeanSupport() {
        return m_beanSupport;
    }

    public final void setProperties(List<PropertyBindableInfo> properties) {
        m_properties = properties;
    }

    @Override
    protected final List<BindableInfo> getChildren() {
        return CoreUtils.cast(m_children);
    }

    /**
     * Access to properties.
     */
    public final List<PropertyBindableInfo> getProperties() {
        // prepare properties
        if (m_properties == null) {
            m_properties = m_beanSupport.getProperties(this);
        }
        return m_properties;
    }

    /**
     * @return {@link PropertyBindableInfo} property that association with given reference or or
     *         <code>null</code>.
     */
    @Override
    public final PropertyBindableInfo resolvePropertyReference(String reference) throws Exception {
        if (reference.indexOf('.') == -1 || !reference.startsWith("\"")) {
            for (PropertyBindableInfo property : getProperties()) {
                if (reference.equals(property.getReference())) {
                    return property;
                }
            }
        } else {
            String localReference = StringUtils.removeStart(reference, "\"");
            localReference = StringUtils.removeEnd(localReference, "\"");
            return resolvePropertyReference(reference, StringUtils.split(localReference, "."), 0);
        }
        return null;
    }

    protected final PropertyBindableInfo resolvePropertyReference(String reference, String[] references, int index)
            throws Exception {
        if (index == references.length - 1) {
            for (PropertyBindableInfo property : getProperties()) {
                if (reference.equals(property.getReference())) {
                    return property;
                }
            }
        } else {
            String localReference = references[index];
            //
            for (PropertyBindableInfo property : getProperties()) {
                String propertyReference = StringUtils.removeStart(property.getReference(), "\"");
                propertyReference = StringUtils.removeEnd(propertyReference, "\"");
                int pointIndex = propertyReference.lastIndexOf('.');
                //
                if (pointIndex != -1) {
                    propertyReference = propertyReference.substring(pointIndex + 1);
                }
                if (localReference.equals(propertyReference)) {
                    return property.resolvePropertyReference(reference, references, index + 1);
                }
            }
        }
        return null;
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // Hierarchy
    //
    ////////////////////////////////////////////////////////////////////////////
    public final IObserveInfo getParent() {
        return m_parent;
    }

    public List<IObserveInfo> getChildren(ChildrenContext context) {
        if (context == ChildrenContext.ChildrenForMasterTable) {
            return CoreUtils.cast(m_children);
        }
        if (context == ChildrenContext.ChildrenForPropertiesTable) {
            return CoreUtils.cast(getProperties());
        }
        return Collections.emptyList();
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // Presentation
    //
    ////////////////////////////////////////////////////////////////////////////
    public final IObservePresentation getPresentation() {
        return m_presentation;
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // ObserveType
    //
    ////////////////////////////////////////////////////////////////////////////
    public final ObserveType getType() {
        return ObserveType.BEANS;
    }
}