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/*
* Sonar, open source software quality management tool.
* Copyright (C) 2008-2012 SonarSource
* mailto:contact AT sonarsource DOT com
*
* Sonar 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 3 of the License, or (at your option) any later version.
*
* Sonar 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 Sonar; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.api.profiles;
import com.google.common.base.Charsets;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.codehaus.staxmate.SMInputFactory;
import org.codehaus.staxmate.in.SMHierarchicCursor;
import org.codehaus.staxmate.in.SMInputCursor;
import org.sonar.api.ServerComponent;
import org.sonar.api.measures.Metric;
import org.sonar.api.measures.MetricFinder;
import org.sonar.api.rules.ActiveRule;
import org.sonar.api.rules.Rule;
import org.sonar.api.rules.RuleFinder;
import org.sonar.api.rules.RulePriority;
import org.sonar.api.utils.Logs;
import org.sonar.api.utils.ValidationMessages;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.HashMap;
import java.util.Map;
/**
* TODO should be an interface
*
* @since 2.3
*/
public final class XMLProfileParser implements ServerComponent {
private final RuleFinder ruleFinder;
private MetricFinder metricFinder;
/**
* For backward compatibility.
*
* @deprecated since 2.5. Plugins shouldn't directly instantiate this class,
* because it should be retrieved as an IoC dependency.
*/
@Deprecated
public XMLProfileParser(RuleFinder ruleFinder) {
this.ruleFinder = ruleFinder;
}
/**
* @deprecated since 2.5. Plugins shouldn't directly instantiate this class,
* because it should be retrieved as an IoC dependency.
*/
@Deprecated
public XMLProfileParser(RuleFinder ruleFinder, MetricFinder metricFinder) {
this.ruleFinder = ruleFinder;
this.metricFinder = metricFinder;
}
public RulesProfile parseResource(ClassLoader classloader, String xmlClassPath, ValidationMessages messages) {
Reader reader = new InputStreamReader(classloader.getResourceAsStream(xmlClassPath), Charsets.UTF_8);
try {
return parse(reader, messages);
} finally {
IOUtils.closeQuietly(reader);
}
}
public RulesProfile parse(Reader reader, ValidationMessages messages) {
RulesProfile profile = RulesProfile.create();
SMInputFactory inputFactory = initStax();
try {
SMHierarchicCursor rootC = inputFactory.rootElementCursor(reader);
rootC.advance(); // <profile>
SMInputCursor cursor = rootC.childElementCursor();
while (cursor.getNext() != null) {
String nodeName = cursor.getLocalName();
if (StringUtils.equals("rules", nodeName)) {
SMInputCursor rulesCursor = cursor.childElementCursor("rule");
processRules(rulesCursor, profile, messages);
} else if (StringUtils.equals("alerts", nodeName)) {
SMInputCursor alertsCursor = cursor.childElementCursor("alert");
processAlerts(alertsCursor, profile, messages);
} else if (StringUtils.equals("name", nodeName)) {
profile.setName(StringUtils.trim(cursor.collectDescendantText(false)));
} else if (StringUtils.equals("language", nodeName)) {
profile.setLanguage(StringUtils.trim(cursor.collectDescendantText(false)));
}
}
} catch (XMLStreamException e) {
messages.addErrorText("XML is not valid: " + e.getMessage());
}
checkProfile(profile, messages);
return profile;
}
private void checkProfile(RulesProfile profile, ValidationMessages messages) {
if (StringUtils.isBlank(profile.getName())) {
messages.addErrorText("The mandatory node <name> is missing.");
}
if (StringUtils.isBlank(profile.getLanguage())) {
messages.addErrorText("The mandatory node <language> is missing.");
}
}
private SMInputFactory initStax() {
XMLInputFactory xmlFactory = XMLInputFactory.newInstance();
xmlFactory.setProperty(XMLInputFactory.IS_COALESCING, Boolean.TRUE);
xmlFactory.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE, Boolean.FALSE);
// just so it won't try to load DTD in if there's DOCTYPE
xmlFactory.setProperty(XMLInputFactory.SUPPORT_DTD, Boolean.FALSE);
xmlFactory.setProperty(XMLInputFactory.IS_VALIDATING, Boolean.FALSE);
return new SMInputFactory(xmlFactory);
}
private void processRules(SMInputCursor rulesCursor, RulesProfile profile, ValidationMessages messages) throws XMLStreamException {
Map<String, String> parameters = new HashMap<String, String>();
while (rulesCursor.getNext() != null) {
SMInputCursor ruleCursor = rulesCursor.childElementCursor();
String repositoryKey = null, key = null;
RulePriority priority = null;
parameters.clear();
while (ruleCursor.getNext() != null) {
String nodeName = ruleCursor.getLocalName();
if (StringUtils.equals("repositoryKey", nodeName)) {
repositoryKey = StringUtils.trim(ruleCursor.collectDescendantText(false));
} else if (StringUtils.equals("key", nodeName)) {
key = StringUtils.trim(ruleCursor.collectDescendantText(false));
} else if (StringUtils.equals("priority", nodeName)) {
priority = RulePriority.valueOf(StringUtils.trim(ruleCursor.collectDescendantText(false)));
} else if (StringUtils.equals("parameters", nodeName)) {
SMInputCursor propsCursor = ruleCursor.childElementCursor("parameter");
processParameters(propsCursor, parameters);
}
}
Rule rule = ruleFinder.findByKey(repositoryKey, key);
if (rule == null) {
messages.addWarningText("Rule not found: [repository=" + repositoryKey + ", key=" + key + "]");
} else {
ActiveRule activeRule = profile.activateRule(rule, priority);
for (Map.Entry<String, String> entry : parameters.entrySet()) {
if (rule.getParam(entry.getKey()) == null) {
messages.addWarningText("The parameter '" + entry.getKey() + "' does not exist in the rule: [repository=" + repositoryKey
+ ", key=" + key + "]");
} else {
activeRule.setParameter(entry.getKey(), entry.getValue());
}
}
}
}
}
private void processParameters(SMInputCursor propsCursor, Map<String, String> parameters) throws XMLStreamException {
while (propsCursor.getNext() != null) {
SMInputCursor propCursor = propsCursor.childElementCursor();
String key = null;
String value = null;
while (propCursor.getNext() != null) {
String nodeName = propCursor.getLocalName();
if (StringUtils.equals("key", nodeName)) {
key = StringUtils.trim(propCursor.collectDescendantText(false));
} else if (StringUtils.equals("value", nodeName)) {
value = StringUtils.trim(propCursor.collectDescendantText(false));
}
}
if (key != null) {
parameters.put(key, value);
}
}
}
private void processAlerts(SMInputCursor alertsCursor, RulesProfile profile, ValidationMessages messages) throws XMLStreamException {
if (metricFinder == null) {
// TODO remove when constructor without MetricFinder would be removed
Logs.INFO.error("Unable to parse alerts, because MetricFinder not available.");
return;
}
while (alertsCursor.getNext() != null) {
SMInputCursor alertCursor = alertsCursor.childElementCursor();
String metricKey = null, operator = "", valueError = "", valueWarning = "";
while (alertCursor.getNext() != null) {
String nodeName = alertCursor.getLocalName();
if (StringUtils.equals("metric", nodeName)) {
metricKey = StringUtils.trim(alertCursor.collectDescendantText(false));
} else if (StringUtils.equals("operator", nodeName)) {
operator = StringUtils.trim(alertCursor.collectDescendantText(false));
} else if (StringUtils.equals("warning", nodeName)) {
valueWarning = StringUtils.trim(alertCursor.collectDescendantText(false));
} else if (StringUtils.equals("error", nodeName)) {
valueError = StringUtils.trim(alertCursor.collectDescendantText(false));
}
}
Metric metric = metricFinder.findByKey(metricKey);
if (metric == null) {
messages.addWarningText("Metric '" + metricKey + "' does not exist");
} else {
Alert alert = new Alert(profile, metric, operator, valueError, valueWarning);
profile.getAlerts().add(alert);
}
}
}
}
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