org.testng.xml.internal.Parser Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of testng Show documentation
Show all versions of testng Show documentation
Testing framework for Java
package org.testng.xml.internal;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.util.ArrayDeque;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.ServiceLoader;
import org.testng.collections.Lists;
import org.testng.collections.Maps;
import org.testng.xml.IFileParser;
import org.testng.xml.IPostProcessor;
import org.testng.xml.ISuiteParser;
import org.testng.xml.SuiteXmlParser;
import org.testng.xml.XmlSuite;
/** Parser is a parser for a TestNG XML test suite file. */
@SuppressWarnings("unused")
public class Parser {
/** The name of the TestNG DTD. */
public static final String TESTNG_DTD = "testng-1.0.dtd";
/** The URL to the deprecated TestNG DTD. */
// It has to be public because its being used by TestNG eclipse plugin
public static final String OLD_TESTNG_DTD_URL = "https://beust.com/testng/" + TESTNG_DTD;
/** The URL to the TestNG DTD. */
// It has to be public because its being used by TestNG eclipse plugin
public static final String TESTNG_DTD_URL = "https://testng.org/" + TESTNG_DTD;
public static final String HTTPS_TESTNG_DTD_URL = "https://testng.org/" + TESTNG_DTD;
/** The default file name for the TestNG test suite if none is specified (testng.xml). */
public static final String DEFAULT_FILENAME = "testng.xml";
private static final ISuiteParser DEFAULT_FILE_PARSER = new SuiteXmlParser();
private static final List PARSERS = Lists.newArrayList();
static {
ServiceLoader suiteParserLoader = ServiceLoader.load(ISuiteParser.class);
for (ISuiteParser parser : suiteParserLoader) {
PARSERS.add(parser);
}
}
/**
* The file name of the xml suite being parsed. This may be null if the Parser has not been
* initialized with a file name. TODO CQ This member is never used.
*/
private String m_fileName;
private InputStream m_inputStream;
private IPostProcessor m_postProcessor;
private boolean m_loadClasses = true;
/**
* Constructs a Parser to use the inputStream as the source of the xml test suite to
* parse.
*
* @param fileName the filename corresponding to the inputStream or null if unknown.
*/
public Parser(String fileName) {
init(fileName, null);
}
/** Creates a parser that will try to find the DEFAULT_FILENAME from the jar. */
public Parser() {
init(null, null);
}
public Parser(InputStream is) {
init(null, is);
}
private void init(String fileName, InputStream is) {
m_fileName = fileName != null ? fileName : DEFAULT_FILENAME;
m_inputStream = is;
}
public void setPostProcessor(IPostProcessor processor) {
m_postProcessor = processor;
}
/** @param loadClasses If false, don't try to load the classes during the parsing. */
public void setLoadClasses(boolean loadClasses) {
m_loadClasses = loadClasses;
}
private static IFileParser getParser(String fileName) {
for (ISuiteParser parser : PARSERS) {
if (parser.accept(fileName)) {
return parser;
}
}
return DEFAULT_FILE_PARSER;
}
/**
* Parses the TestNG test suite and returns the corresponding XmlSuite, and possibly, other
* XmlSuite that are pointed to by <suite-files> tags.
*
* @return the parsed TestNG test suite.
* @throws IOException if an I/O error occurs while parsing the test suite file or if the default
* testng.xml file is not found.
*/
public Collection parse() throws IOException {
// Each suite found is put in this list, using their canonical
// path to make sure we don't add a same file twice
// (e.g. "testng.xml" and "./testng.xml")
List processedSuites = Lists.newArrayList();
XmlSuite resultSuite = null;
List toBeParsed = Lists.newArrayList();
List toBeAdded = Lists.newArrayList();
List toBeRemoved = Lists.newArrayList();
if (m_fileName != null) {
URI uri = constructURI(m_fileName);
if (uri == null || uri.getScheme() == null) {
uri = new File(m_fileName).toURI();
}
if ("file".equalsIgnoreCase(uri.getScheme())) {
File mainFile = new File(uri);
toBeParsed.add(mainFile.getCanonicalPath());
} else {
toBeParsed.add(uri.toString());
}
}
/*
* Keeps a track of parent XmlSuite for each child suite
*/
Map> childToParentMap = Maps.newHashMap();
while (!toBeParsed.isEmpty()) {
for (String currentFile : toBeParsed) {
File parentFile = null;
InputStream inputStream = null;
if (hasFileScheme(currentFile)) {
File currFile = new File(currentFile);
parentFile = currFile.getParentFile();
inputStream = m_inputStream != null ? m_inputStream : new FileInputStream(currFile);
}
IFileParser fileParser = getParser(currentFile);
XmlSuite currentXmlSuite = fileParser.parse(currentFile, inputStream, m_loadClasses);
currentXmlSuite.setParsed(true);
processedSuites.add(currentFile);
toBeRemoved.add(currentFile);
if (childToParentMap.containsKey(currentFile)) {
XmlSuite parentSuite = childToParentMap.get(currentFile).remove();
// Set parent
currentXmlSuite.setParentSuite(parentSuite);
// append children
parentSuite.getChildSuites().add(currentXmlSuite);
}
if (null == resultSuite) {
resultSuite = currentXmlSuite;
}
List suiteFiles = currentXmlSuite.getSuiteFiles();
if (!suiteFiles.isEmpty()) {
for (String path : suiteFiles) {
String canonicalPath = path;
if (hasFileScheme(path)) {
if (parentFile != null && new File(parentFile, path).exists()) {
canonicalPath = new File(parentFile, path).getCanonicalPath();
} else {
canonicalPath = new File(path).getCanonicalPath();
}
}
if (!processedSuites.contains(canonicalPath)) {
toBeAdded.add(canonicalPath);
if (childToParentMap.containsKey(canonicalPath)) {
childToParentMap.get(canonicalPath).add(currentXmlSuite);
} else {
Queue parentQueue = new ArrayDeque<>();
parentQueue.add(currentXmlSuite);
childToParentMap.put(canonicalPath, parentQueue);
}
}
}
}
}
//
// Add and remove files from toBeParsed before we loop
//
toBeParsed.removeAll(toBeRemoved);
toBeRemoved = Lists.newArrayList();
toBeParsed.addAll(toBeAdded);
toBeAdded = Lists.newArrayList();
}
// returning a list of single suite to keep changes minimum
List resultList = Lists.newArrayList();
resultList.add(resultSuite);
if (m_postProcessor != null) {
return m_postProcessor.process(resultList);
} else {
return resultList;
}
}
/**
* @param uri - The uri to be verified.
* @return - true if the uri has "file:" as its scheme.
*/
public static boolean hasFileScheme(String uri) {
URI constructedURI = constructURI(uri);
if (constructedURI == null) {
// There were difficulties in constructing the URI. Falling back to considering the URI as a
// file.
return true;
}
String scheme = constructedURI.getScheme();
// A URI is regarded as having a file scheme if it either has its scheme as "file"
// (or) if the scheme is null (which is true when uri's represent local file system path.)
return scheme == null || "file".equalsIgnoreCase(scheme);
}
public List parseToList() throws IOException {
return Lists.newArrayList(parse());
}
public static Collection parse(String suite, IPostProcessor processor)
throws IOException {
return newParser(suite, processor).parse();
}
public static Collection parse(InputStream is, IPostProcessor processor)
throws IOException {
return newParser(is, processor).parse();
}
public static boolean canParse(String fileName) {
for (ISuiteParser parser : PARSERS) {
if (parser.accept(fileName)) {
return true;
}
}
return DEFAULT_FILE_PARSER.accept(fileName);
}
private static Parser newParser(String path, IPostProcessor processor) {
Parser result = new Parser(path);
result.setPostProcessor(processor);
return result;
}
private static Parser newParser(InputStream is, IPostProcessor processor) {
Parser result = new Parser(is);
result.setPostProcessor(processor);
return result;
}
private static URI constructURI(String text) {
try {
return URI.create(text);
} catch (Exception e) {
return null;
}
}
}