org.pentaho.pac.server.config.AbstractDiagnosticsJmxXml.java Source code

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Here is the source code for org.pentaho.pac.server.config.AbstractDiagnosticsJmxXml.java

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/*
 * This program is free software; you can redistribute it and/or modify it under the 
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software 
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this 
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html 
 * or from the Free Software Foundation, Inc., 
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program 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.
 *
 * Copyright 2008 - 2009 Pentaho Corporation.  All rights reserved.
*/
package org.pentaho.pac.server.config;

import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.Node;
import org.pentaho.pac.common.config.TestResult;
import org.pentaho.platform.engine.security.userroledao.messages.Messages;

public abstract class AbstractDiagnosticsJmxXml {

    protected static final String ROOT_ELEMENT = "jmxxml"; //$NON-NLS-1$
    protected static final String ID_ATTRIBUTE = "id"; //$NON-NLS-1$
    protected static final String ATTRIBUTE_ELEMENT = "attribute"; //$NON-NLS-1$
    protected static final String VALUE_ELEMENT = "value"; //$NON-NLS-1$
    protected static final String RESULT_CODE_ELEMENT = "resultCode"; //$NON-NLS-1$
    protected static final String DESCRIPTION_ELEMENT = "description"; //$NON-NLS-1$
    protected static final String ATTRIBUTE_VALUE_XPATH = ROOT_ELEMENT + "/" + ATTRIBUTE_ELEMENT + "[@" //$NON-NLS-1$//$NON-NLS-2$
            + ID_ATTRIBUTE + "=\"{0}\"]/" + VALUE_ELEMENT; //$NON-NLS-1$
    protected static final String ATTRIBUTE_RESULT_CODE_XPATH = ROOT_ELEMENT + "/" + ATTRIBUTE_ELEMENT + "[@" //$NON-NLS-1$//$NON-NLS-2$
            + ID_ATTRIBUTE + "=\"{0}\"]/" + RESULT_CODE_ELEMENT; //$NON-NLS-1$
    protected static final String ATTRIBUTE_DESCRIPTION_XPATH = ROOT_ELEMENT + "/" + ATTRIBUTE_ELEMENT + "[@" //$NON-NLS-1$//$NON-NLS-2$
            + ID_ATTRIBUTE + "=\"{0}\"]/" + DESCRIPTION_ELEMENT; //$NON-NLS-1$
    protected static final String ATTRIBUTE_XPATH = ROOT_ELEMENT + "/" + ATTRIBUTE_ELEMENT + "[@" + ID_ATTRIBUTE //$NON-NLS-1$//$NON-NLS-2$
            + "=\"{0}\"]"; //$NON-NLS-1$

    protected Document document;

    public AbstractDiagnosticsJmxXml(String jmxXml) throws DocumentException {
        this(DocumentHelper.parseText(jmxXml));
    }

    public AbstractDiagnosticsJmxXml(Document jmxDocument) throws DocumentException {
        if (jmxDocument != null) {
            Element rootElement = jmxDocument.getRootElement();
            if ((rootElement != null) && !jmxDocument.getRootElement().getName().equals(ROOT_ELEMENT)) {
                throw new DocumentException(
                        Messages.getErrorString("GoogleMapsConfig.ERROR_0001_INVALID_ROOT_ELEMENT")); //$NON-NLS-1$
            }
            document = jmxDocument;
        }
    }

    public AbstractDiagnosticsJmxXml() {
        document = DocumentHelper.createDocument();
        document.addElement(ROOT_ELEMENT);
    }

    protected String getAttributeResultCode(String attributeName) {
        String xPath = MessageFormat.format(ATTRIBUTE_RESULT_CODE_XPATH, attributeName);
        Node node = document.selectSingleNode(xPath);
        return node != null ? node.getText() : null;
    }

    protected void setAttributeResultCode(String attributeName, String resultCode) {
        String attrXPath = MessageFormat.format(ATTRIBUTE_RESULT_CODE_XPATH, attributeName);
        Element attrElement = (Element) document.selectSingleNode(attrXPath);
        if (resultCode == null) {
            if (attrElement != null) {
                attrElement.detach();
            }
        } else {
            if (attrElement == null) {
                attrElement = document.getRootElement().addElement(ATTRIBUTE_ELEMENT);
                attrElement.addAttribute(ID_ATTRIBUTE, attributeName);
            }
            Element attrValueElement = DocumentHelper.makeElement(attrElement, RESULT_CODE_ELEMENT);
            attrValueElement.setText(resultCode);
        }
    }

    protected String getAttributeValue(String attributeName) {
        String xPath = MessageFormat.format(ATTRIBUTE_VALUE_XPATH, attributeName);
        Node node = document.selectSingleNode(xPath);
        return node != null ? node.getText() : null;
    }

    protected void setAttributeValue(String attributeName, String attributeValue) {
        String attrXPath = MessageFormat.format(ATTRIBUTE_XPATH, attributeName);
        Element attrElement = (Element) document.selectSingleNode(attrXPath);
        if (attributeValue == null) {
            if (attrElement != null) {
                attrElement.detach();
            }
        } else {
            if (attrElement == null) {
                attrElement = document.getRootElement().addElement(ATTRIBUTE_ELEMENT);
                attrElement.addAttribute(ID_ATTRIBUTE, attributeName);
            }
            Element attrValueElement = DocumentHelper.makeElement(attrElement, VALUE_ELEMENT);
            attrValueElement.setText(attributeValue);
        }
    }

    public List<TestResult> getWarnings() {
        // All warnings are currently being returned as errors.
        return new ArrayList<TestResult>();
        //    List<Element> resultCodeElements = document.selectNodes("//" + ATTRIBUTE_ELEMENT + "/" + RESULT_CODE_ELEMENT);
        //    for (Element resultCodeElement : resultCodeElements) {
        //      if (resultCodeElement.getText().equals("WARN")) {
        //        TestResult testResult = new TestResult();
        //        Element attributeElement = resultCodeElement.getParent();
        //        testResult.setTestName(attributeElement.attributeValue(ID_ATTRIBUTE));
        //        testResult.setResultMessage(attributeElement.element(VALUE_ELEMENT).getText());
        //        warnings.add(testResult);
        //      }
        //    }
        //    return warnings;
    }

    public List<TestResult> getErrors() {
        ArrayList<TestResult> errors = new ArrayList<TestResult>();
        List<Element> resultCodeElements = document
                .selectNodes("//" + ATTRIBUTE_ELEMENT + "/" + RESULT_CODE_ELEMENT);
        for (Element resultCodeElement : resultCodeElements) {
            if (!resultCodeElement.getText().equals("PASS")) {
                TestResult testResult = new TestResult();
                Element attributeElement = resultCodeElement.getParent();
                testResult.setTestName(attributeElement.attributeValue(ID_ATTRIBUTE));
                testResult.setResultMessage(attributeElement.element(VALUE_ELEMENT).getText());
                errors.add(testResult);
            }
        }
        return errors;
    }
}