org.springframework.ide.eclipse.osgi.blueprint.internal.BlueprintDefaultsDefinition.java Source code

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Here is the source code for org.springframework.ide.eclipse.osgi.blueprint.internal.BlueprintDefaultsDefinition.java

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/******************************************************************************
 * Copyright (c) 2006, 2010 VMware Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Apache License v2.0 which accompanies this distribution. 
 * The Eclipse Public License is available at 
 * https://www.eclipse.org/legal/epl-v10.html and the Apache License v2.0
 * is available at https://www.opensource.org/licenses/apache2.0.php.
 * You may elect to redistribute this code under either of these licenses. 
 * 
 * Contributors:
 *   VMware Inc.         - initial API and implementation
 *   Spring IDE Developers 
 *****************************************************************************/

package org.springframework.ide.eclipse.osgi.blueprint.internal;

import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.ide.eclipse.osgi.blueprint.internal.jaxb.Tavailability;
import org.springframework.util.StringUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

/**
 * Blueprint namespace defaults for a given element/document.
 * 
 * @author Costin Leau
 * @author Arnaud Mergey
 * 
 * @since 3.7.2
 * 
 */
public class BlueprintDefaultsDefinition {

    private static final String BLUEPRINT_NS = "http://www.osgi.org/xmlns/blueprint/v1.0.0";
    private static final String DEFAULT_TIMEOUT = "default-timeout";
    private static final String DEFAULT_AVAILABILITY = "default-availability";
    private static final String TIMEOUT_DEFAULT = "300000";
    private static final String DEFAULT_INITIALIZATION = "default-activation";
    private static final String LAZY_INITIALIZATION = "lazy";
    private static final boolean INITIALIZATION_DEFAULT = false;

    /** Lazy flag */
    private boolean defaultInitialization;

    /** Default value */
    private String timeout = TIMEOUT_DEFAULT;
    /** Default value */
    private Tavailability availability = Tavailability.MANDATORY;

    /**
     * Constructs a new <code>BlueprintDefaultsDefinition</code> instance.
     * 
     * @param parserContext
     * 
     * @param root
     */
    public BlueprintDefaultsDefinition(Document doc, ParserContext parserContext) {
        Element root = doc.getDocumentElement();
        String timeout = getAttribute(root, BLUEPRINT_NS, DEFAULT_TIMEOUT);
        setTimeout(StringUtils.hasText(timeout) ? timeout.trim() : TIMEOUT_DEFAULT);

        String availability = getAttribute(root, BLUEPRINT_NS, DEFAULT_AVAILABILITY);
        if (StringUtils.hasText(availability)) {
            Tavailability avail = Tavailability.fromValue(availability);
            setAvailability(avail);
        }

        // default initialization
        String initialization = getAttribute(root, BLUEPRINT_NS, DEFAULT_INITIALIZATION);
        defaultInitialization = (StringUtils.hasText(initialization)
                ? initialization.trim().equalsIgnoreCase(LAZY_INITIALIZATION)
                : INITIALIZATION_DEFAULT);
    }

    public boolean getDefaultInitialization() {
        return defaultInitialization;
    }

    public String getTimeout() {
        return timeout;
    }

    protected void setTimeout(String timeout) {
        this.timeout = timeout;
    }

    public Tavailability getAvailability() {
        return availability;
    }

    protected void setAvailability(Tavailability availability) {
        this.availability = availability;
    }

    protected String getAttribute(Element root, String ns, String attributeName) {
        String value = root.getAttributeNS(ns, attributeName);
        return (!StringUtils.hasText(value) ? root.getAttribute(attributeName) : value);
    }
}