[jbossweb-commits] JBossWeb SVN: r1431 - trunk/java/org/apache/tomcat/util.

Author: remy.maucherat(a)jboss.com Date: 2010-04-05 10:26:16 -0400 (Mon, 05 Apr 2010) New Revision: 1431 Modified: trunk/java/org/apache/tomcat/util/IntrospectionUtils.java Log: - Remove dead code. Modified: trunk/java/org/apache/tomcat/util/IntrospectionUtils.java =================================================================== --- trunk/java/org/apache/tomcat/util/IntrospectionUtils.java 2010-04-05 14:15:03 UTC (rev 1430) +++ trunk/java/org/apache/tomcat/util/IntrospectionUtils.java 2010-04-05 14:26:16 UTC (rev 1431) @@ -17,23 +17,16 @@ package org.apache.tomcat.util; -import java.io.File; -import java.io.FilenameFilter; -import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.net.InetAddress; -import java.net.MalformedURLException; -import java.net.URL; import java.net.UnknownHostException; -import java.util.Hashtable; -import java.util.StringTokenizer; -import java.util.Vector; // Depends: JDK1.1 /** * Utils for introspection and reflection + * Note: For the complete legacy version, see JBoss Web 2.1 */ public final class IntrospectionUtils { @@ -42,218 +35,6 @@ org.jboss.logging.Logger.getLogger( IntrospectionUtils.class ); /** - * Call execute() - any ant-like task should work - */ - public static void execute(Object proxy, String method) throws Exception { - Method executeM = null; - Class c = proxy.getClass(); - Class params[] = new Class[0]; - // params[0]=args.getClass(); - executeM = findMethod(c, method, params); - if (executeM == null) { - throw new RuntimeException("No execute in " + proxy.getClass()); - } - executeM.invoke(proxy, (Object[]) null);//new Object[] { args }); - } - - /** - * Call void setAttribute( String ,Object ) - */ - public static void setAttribute(Object proxy, String n, Object v) - throws Exception { - if (proxy instanceof AttributeHolder) { - ((AttributeHolder) proxy).setAttribute(n, v); - return; - } - - Method executeM = null; - Class c = proxy.getClass(); - Class params[] = new Class[2]; - params[0] = String.class; - params[1] = Object.class; - executeM = findMethod(c, "setAttribute", params); - if (executeM == null) { - if (log.isDebugEnabled()) - log.debug("No setAttribute in " + proxy.getClass()); - return; - } - if (false) - if (log.isDebugEnabled()) - log.debug("Setting " + n + "=" + v + " in " + proxy); - executeM.invoke(proxy, new Object[] { n, v }); - return; - } - - /** - * Call void getAttribute( String ) - */ - public static Object getAttribute(Object proxy, String n) throws Exception { - Method executeM = null; - Class c = proxy.getClass(); - Class params[] = new Class[1]; - params[0] = String.class; - executeM = findMethod(c, "getAttribute", params); - if (executeM == null) { - if (log.isDebugEnabled()) - log.debug("No getAttribute in " + proxy.getClass()); - return null; - } - return executeM.invoke(proxy, new Object[] { n }); - } - - /** - * Construct a URLClassLoader. Will compile and work in JDK1.1 too. - */ - public static ClassLoader getURLClassLoader(URL urls[], ClassLoader parent) { - try { - Class urlCL = Class.forName("java.net.URLClassLoader"); - Class paramT[] = new Class[2]; - paramT[0] = urls.getClass(); - paramT[1] = ClassLoader.class; - Method m = findMethod(urlCL, "newInstance", paramT); - if (m == null) - return null; - - ClassLoader cl = (ClassLoader) m.invoke(urlCL, new Object[] { urls, - parent }); - return cl; - } catch (ClassNotFoundException ex) { - // jdk1.1 - return null; - } catch (Exception ex) { - ex.printStackTrace(); - return null; - } - } - - public static String guessInstall(String installSysProp, - String homeSysProp, String jarName) { - return guessInstall(installSysProp, homeSysProp, jarName, null); - } - - /** - * Guess a product install/home by analyzing the class path. It works for - * product using the pattern: lib/executable.jar or if executable.jar is - * included in classpath by a shell script. ( java -jar also works ) - * - * Insures both "install" and "home" System properties are set. If either or - * both System properties are unset, "install" and "home" will be set to the - * same value. This value will be the other System property that is set, or - * the guessed value if neither is set. - */ - public static String guessInstall(String installSysProp, - String homeSysProp, String jarName, String classFile) { - String install = null; - String home = null; - - if (installSysProp != null) - install = System.getProperty(installSysProp); - - if (homeSysProp != null) - home = System.getProperty(homeSysProp); - - if (install != null) { - if (home == null) - System.getProperties().put(homeSysProp, install); - return install; - } - - // Find the directory where jarName.jar is located - - String cpath = System.getProperty("java.class.path"); - String pathSep = System.getProperty("path.separator"); - StringTokenizer st = new StringTokenizer(cpath, pathSep); - while (st.hasMoreTokens()) { - String path = st.nextToken(); - // log( "path " + path ); - if (path.endsWith(jarName)) { - home = path.substring(0, path.length() - jarName.length()); - try { - if ("".equals(home)) { - home = new File("./").getCanonicalPath(); - } else if (home.endsWith(File.separator)) { - home = home.substring(0, home.length() - 1); - } - File f = new File(home); - String parentDir = f.getParent(); - if (parentDir == null) - parentDir = home; // unix style - File f1 = new File(parentDir); - install = f1.getCanonicalPath(); - if (installSysProp != null) - System.getProperties().put(installSysProp, install); - if (home == null && homeSysProp != null) - System.getProperties().put(homeSysProp, install); - return install; - } catch (Exception ex) { - ex.printStackTrace(); - } - } else { - String fname = path + (path.endsWith("/") ? "" : "/") - + classFile; - if (new File(fname).exists()) { - try { - File f = new File(path); - String parentDir = f.getParent(); - if (parentDir == null) - parentDir = path; // unix style - File f1 = new File(parentDir); - install = f1.getCanonicalPath(); - if (installSysProp != null) - System.getProperties().put(installSysProp, install); - if (home == null && homeSysProp != null) - System.getProperties().put(homeSysProp, install); - return install; - } catch (Exception ex) { - ex.printStackTrace(); - } - } - } - } - - // if install directory can't be found, use home as the default - if (home != null) { - System.getProperties().put(installSysProp, home); - return home; - } - - return null; - } - - /** - * Debug method, display the classpath - */ - public static void displayClassPath(String msg, URL[] cp) { - if (log.isDebugEnabled()) { - log.debug(msg); - for (int i = 0; i < cp.length; i++) { - log.debug(cp[i].getFile()); - } - } - } - - public static String PATH_SEPARATOR = System.getProperty("path.separator"); - - /** - * Adds classpath entries from a vector of URL's to the "tc_path_add" System - * property. This System property lists the classpath entries common to web - * applications. This System property is currently used by Jasper when its - * JSP servlet compiles the Java file for a JSP. - */ - public static String classPathAdd(URL urls[], String cp) { - if (urls == null) - return cp; - - for (int i = 0; i < urls.length; i++) { - if (cp != null) - cp += PATH_SEPARATOR + urls[i].getFile(); - else - cp = urls[i].getFile(); - } - return cp; - } - - /** * Find a method with the right name If found, call the method ( if param is * int or boolean we'll convert value to the right type before) - that means * you can have setDebug(1). @@ -265,7 +46,7 @@ String setter = "set" + capitalize(name); try { - Method methods[] = findMethods(o.getClass()); + Method methods[] = o.getClass().getMethods(); Method setPropertyMethodVoid = null; Method setPropertyMethodBool = null; @@ -385,7 +166,7 @@ String isGetter = "is" + capitalize(name); try { - Method methods[] = findMethods(o.getClass()); + Method methods[] = o.getClass().getMethods(); Method getPropertyMethod = null; // First, the ideal case - a getFoo() method @@ -433,113 +214,7 @@ return null; } - /** - */ - public static void setProperty(Object o, String name) { - String setter = "set" + capitalize(name); - try { - Method methods[] = findMethods(o.getClass()); - Method setPropertyMethod = null; - // find setFoo() method - for (int i = 0; i < methods.length; i++) { - Class paramT[] = methods[i].getParameterTypes(); - if (setter.equals(methods[i].getName()) && paramT.length == 0) { - methods[i].invoke(o, new Object[] {}); - return; - } - } - } catch (Exception ex1) { - if (dbg > 0) - d("Exception for " + o.getClass() + " " + name); - if (dbg > 1) - ex1.printStackTrace(); - } - } - /** - * Replace ${NAME} with the property value - * - * @deprecated Use the explicit method - */ - public static String replaceProperties(String value, Object getter) { - if (getter instanceof Hashtable) - return replaceProperties(value, (Hashtable) getter, null); - - if (getter instanceof PropertySource) { - PropertySource src[] = new PropertySource[] { (PropertySource) getter }; - return replaceProperties(value, null, src); - } - return value; - } - - /** - * Replace ${NAME} with the property value - */ - public static String replaceProperties(String value, Hashtable staticProp, - PropertySource dynamicProp[]) { - if (value.indexOf("$") < 0) { - return value; - } - StringBuilder sb = new StringBuilder(); - int prev = 0; - // assert value!=nil - int pos; - while ((pos = value.indexOf("$", prev)) >= 0) { - if (pos > 0) { - sb.append(value.substring(prev, pos)); - } - if (pos == (value.length() - 1)) { - sb.append('$'); - prev = pos + 1; - } else if (value.charAt(pos + 1) != '{') { - sb.append('$'); - prev = pos + 1; // XXX - } else { - int endName = value.indexOf('}', pos); - if (endName < 0) { - sb.append(value.substring(pos)); - prev = value.length(); - continue; - } - int endName2 = value.indexOf(':', pos); - String n = null; - String d = null; - if (endName2 > 0 && endName2 < endName) { - n = value.substring(pos + 2, endName2); - d = value.substring(endName2 + 1, endName); - } else { - n = value.substring(pos + 2, endName); - } - String v = null; - if (staticProp != null) { - v = (String) ((Hashtable) staticProp).get(n); - } - if (v == null && dynamicProp != null) { - for (int i = 0; i < dynamicProp.length; i++) { - v = dynamicProp[i].getProperty(n); - if (v != null) { - break; - } - } - } - if (v == null) { - if (d == null) { - v = "${" + n + "}"; - } else { - v = d; - } - } - - sb.append(v); - prev = endName + 1; - } - } - if (prev < value.length()) - sb.append(value.substring(prev)); - return sb.toString(); - } - - /** * Reverse of Introspector.decapitalize */ public static String capitalize(String name) { @@ -560,466 +235,6 @@ return new String(chars); } - // -------------------- Class path tools -------------------- - - /** - * Add all the jar files in a dir to the classpath, represented as a Vector - * of URLs. - */ - public static void addToClassPath(Vector cpV, String dir) { - try { - String cpComp[] = getFilesByExt(dir, ".jar"); - if (cpComp != null) { - int jarCount = cpComp.length; - for (int i = 0; i < jarCount; i++) { - URL url = getURL(dir, cpComp[i]); - if (url != null) - cpV.addElement(url); - } - } - } catch (Exception ex) { - ex.printStackTrace(); - } - } - - public static void addToolsJar(Vector v) { - try { - // Add tools.jar in any case - File f = new File(System.getProperty("java.home") - + "/../lib/tools.jar"); - - if (!f.exists()) { - // On some systems java.home gets set to the root of jdk. - // That's a bug, but we can work around and be nice. - f = new File(System.getProperty("java.home") + "/lib/tools.jar"); - if (f.exists()) { - if (log.isDebugEnabled()) - log.debug("Detected strange java.home value " - + System.getProperty("java.home") - + ", it should point to jre"); - } - } - URL url = new URL("file", "", f.getAbsolutePath()); - - v.addElement(url); - } catch (MalformedURLException ex) { - ex.printStackTrace(); - } - } - - /** - * Return all files with a given extension in a dir - */ - public static String[] getFilesByExt(String ld, String ext) { - File dir = new File(ld); - String[] names = null; - final String lext = ext; - if (dir.isDirectory()) { - names = dir.list(new FilenameFilter() { - public boolean accept(File d, String name) { - if (name.endsWith(lext)) { - return true; - } - return false; - } - }); - } - return names; - } - - /** - * Construct a file url from a file, using a base dir - */ - public static URL getURL(String base, String file) { - try { - File baseF = new File(base); - File f = new File(baseF, file); - String path = f.getCanonicalPath(); - if (f.isDirectory()) { - path += "/"; - } - if (!f.exists()) - return null; - return new URL("file", "", path); - } catch (Exception ex) { - ex.printStackTrace(); - return null; - } - } - - /** - * Add elements from the classpath <i>cp </i> to a Vector <i>jars </i> as - * file URLs (We use Vector for JDK 1.1 compat). - * <p> - * - * @param jars The jar list - * @param cp a String classpath of directory or jar file elements - * separated by path.separator delimiters. - * @throws IOException If an I/O error occurs - * @throws MalformedURLException Doh ;) - */ - public static void addJarsFromClassPath(Vector jars, String cp) - throws IOException, MalformedURLException { - String sep = System.getProperty("path.separator"); - String token; - StringTokenizer st; - if (cp != null) { - st = new StringTokenizer(cp, sep); - while (st.hasMoreTokens()) { - File f = new File(st.nextToken()); - String path = f.getCanonicalPath(); - if (f.isDirectory()) { - path += "/"; - } - URL url = new URL("file", "", path); - if (!jars.contains(url)) { - jars.addElement(url); - } - } - } - } - - /** - * Return a URL[] that can be used to construct a class loader - */ - public static URL[] getClassPath(Vector v) { - URL[] urls = new URL[v.size()]; - for (int i = 0; i < v.size(); i++) { - urls[i] = (URL) v.elementAt(i); - } - return urls; - } - - /** - * Construct a URL classpath from files in a directory, a cpath property, - * and tools.jar. - */ - public static URL[] getClassPath(String dir, String cpath, - String cpathProp, boolean addTools) throws IOException, - MalformedURLException { - Vector jarsV = new Vector(); - if (dir != null) { - // Add dir/classes first, if it exists - URL url = getURL(dir, "classes"); - if (url != null) - jarsV.addElement(url); - addToClassPath(jarsV, dir); - } - - if (cpath != null) - addJarsFromClassPath(jarsV, cpath); - - if (cpathProp != null) { - String cpath1 = System.getProperty(cpathProp); - addJarsFromClassPath(jarsV, cpath1); - } - - if (addTools) - addToolsJar(jarsV); - - return getClassPath(jarsV); - } - - // -------------------- Mapping command line params to setters - - public static boolean processArgs(Object proxy, String args[]) - throws Exception { - String args0[] = null; - if (null != findMethod(proxy.getClass(), "getOptions1", new Class[] {})) { - args0 = (String[]) callMethod0(proxy, "getOptions1"); - } - - if (args0 == null) { - //args0=findVoidSetters(proxy.getClass()); - args0 = findBooleanSetters(proxy.getClass()); - } - Hashtable h = null; - if (null != findMethod(proxy.getClass(), "getOptionAliases", - new Class[] {})) { - h = (Hashtable) callMethod0(proxy, "getOptionAliases"); - } - return processArgs(proxy, args, args0, null, h); - } - - public static boolean processArgs(Object proxy, String args[], - String args0[], String args1[], Hashtable aliases) throws Exception { - for (int i = 0; i < args.length; i++) { - String arg = args[i]; - if (arg.startsWith("-")) - arg = arg.substring(1); - if (aliases != null && aliases.get(arg) != null) - arg = (String) aliases.get(arg); - - if (args0 != null) { - boolean set = false; - for (int j = 0; j < args0.length; j++) { - if (args0[j].equalsIgnoreCase(arg)) { - setProperty(proxy, args0[j], "true"); - set = true; - break; - } - } - if (set) - continue; - } - if (args1 != null) { - for (int j = 0; j < args1.length; j++) { - if (args1[j].equalsIgnoreCase(arg)) { - i++; - if (i >= args.length) - return false; - setProperty(proxy, arg, args[i]); - break; - } - } - } else { - // if args1 is not specified,assume all other options have param - i++; - if (i >= args.length) - return false; - setProperty(proxy, arg, args[i]); - } - - } - return true; - } - - // -------------------- other utils -------------------- - public static void clear() { - objectMethods.clear(); - } - - public static String[] findVoidSetters(Class c) { - Method m[] = findMethods(c); - if (m == null) - return null; - Vector v = new Vector(); - for (int i = 0; i < m.length; i++) { - if (m[i].getName().startsWith("set") - && m[i].getParameterTypes().length == 0) { - String arg = m[i].getName().substring(3); - v.addElement(unCapitalize(arg)); - } - } - String s[] = new String[v.size()]; - for (int i = 0; i < s.length; i++) { - s[i] = (String) v.elementAt(i); - } - return s; - } - - public static String[] findBooleanSetters(Class c) { - Method m[] = findMethods(c); - if (m == null) - return null; - Vector v = new Vector(); - for (int i = 0; i < m.length; i++) { - if (m[i].getName().startsWith("set") - && m[i].getParameterTypes().length == 1 - && "boolean".equalsIgnoreCase(m[i].getParameterTypes()[0] - .getName())) { - String arg = m[i].getName().substring(3); - v.addElement(unCapitalize(arg)); - } - } - String s[] = new String[v.size()]; - for (int i = 0; i < s.length; i++) { - s[i] = (String) v.elementAt(i); - } - return s; - } - - static Hashtable objectMethods = new Hashtable(); - - public static Method[] findMethods(Class c) { - Method methods[] = (Method[]) objectMethods.get(c); - if (methods != null) - return methods; - - methods = c.getMethods(); - objectMethods.put(c, methods); - return methods; - } - - public static Method findMethod(Class c, String name, Class params[]) { - Method methods[] = findMethods(c); - if (methods == null) - return null; - for (int i = 0; i < methods.length; i++) { - if (methods[i].getName().equals(name)) { - Class methodParams[] = methods[i].getParameterTypes(); - if (methodParams == null) - if (params == null || params.length == 0) - return methods[i]; - if (params == null) - if (methodParams == null || methodParams.length == 0) - return methods[i]; - if (params.length != methodParams.length) - continue; - boolean found = true; - for (int j = 0; j < params.length; j++) { - if (params[j] != methodParams[j]) { - found = false; - break; - } - } - if (found) - return methods[i]; - } - } - return null; - } - - /** Test if the object implements a particular - * method - */ - public static boolean hasHook(Object obj, String methodN) { - try { - Method myMethods[] = findMethods(obj.getClass()); - for (int i = 0; i < myMethods.length; i++) { - if (methodN.equals(myMethods[i].getName())) { - // check if it's overriden - Class declaring = myMethods[i].getDeclaringClass(); - Class parentOfDeclaring = declaring.getSuperclass(); - // this works only if the base class doesn't extend - // another class. - - // if the method is declared in a top level class - // like BaseInterceptor parent is Object, otherwise - // parent is BaseInterceptor or an intermediate class - if (!"java.lang.Object".equals(parentOfDeclaring.getName())) { - return true; - } - } - } - } catch (Exception ex) { - ex.printStackTrace(); - } - return false; - } - - public static void callMain(Class c, String args[]) throws Exception { - Class p[] = new Class[1]; - p[0] = args.getClass(); - Method m = c.getMethod("main", p); - m.invoke(c, new Object[] { args }); - } - - public static Object callMethod1(Object target, String methodN, - Object param1, String typeParam1, ClassLoader cl) throws Exception { - if (target == null || param1 == null) { - d("Assert: Illegal params " + target + " " + param1); - } - if (dbg > 0) - d("callMethod1 " + target.getClass().getName() + " " - + param1.getClass().getName() + " " + typeParam1); - - Class params[] = new Class[1]; - if (typeParam1 == null) - params[0] = param1.getClass(); - else - params[0] = cl.loadClass(typeParam1); - Method m = findMethod(target.getClass(), methodN, params); - if (m == null) - throw new NoSuchMethodException(target.getClass().getName() + " " - + methodN); - return m.invoke(target, new Object[] { param1 }); - } - - public static Object callMethod0(Object target, String methodN) - throws Exception { - if (target == null) { - d("Assert: Illegal params " + target); - return null; - } - if (dbg > 0) - d("callMethod0 " + target.getClass().getName() + "." + methodN); - - Class params[] = new Class[0]; - Method m = findMethod(target.getClass(), methodN, params); - if (m == null) - throw new NoSuchMethodException(target.getClass().getName() + " " - + methodN); - return m.invoke(target, emptyArray); - } - - static Object[] emptyArray = new Object[] {}; - - public static Object callMethodN(Object target, String methodN, - Object params[], Class typeParams[]) throws Exception { - Method m = null; - m = findMethod(target.getClass(), methodN, typeParams); - if (m == null) { - d("Can't find method " + methodN + " in " + target + " CLASS " - + target.getClass()); - return null; - } - Object o = m.invoke(target, params); - - if (dbg > 0) { - // debug - StringBuilder sb = new StringBuilder(); - sb.append("" + target.getClass().getName() + "." + methodN + "( "); - for (int i = 0; i < params.length; i++) { - if (i > 0) - sb.append(", "); - sb.append(params[i]); - } - sb.append(")"); - d(sb.toString()); - } - return o; - } - - public static Object convert(String object, Class paramType) { - Object result = null; - if ("java.lang.String".equals(paramType.getName())) { - result = object; - } else if ("java.lang.Integer".equals(paramType.getName()) - || "int".equals(paramType.getName())) { - try { - result = new Integer(object); - } catch (NumberFormatException ex) { - } - // Try a setFoo ( boolean ) - } else if ("java.lang.Boolean".equals(paramType.getName()) - || "boolean".equals(paramType.getName())) { - result = new Boolean(object); - - // Try a setFoo ( InetAddress ) - } else if ("java.net.InetAddress".equals(paramType - .getName())) { - try { - result = InetAddress.getByName(object); - } catch (UnknownHostException exc) { - d("Unable to resolve host name:" + object); - } - - // Unknown type - } else { - d("Unknown type " + paramType.getName()); - } - if (result == null) { - throw new IllegalArgumentException("Can't convert argument: " + object); - } - return result; - } - - // -------------------- Get property -------------------- - // This provides a layer of abstraction - - public static interface PropertySource { - - public String getProperty(String key); - - } - - public static interface AttributeHolder { - - public void setAttribute(String key, Object o); - - } - // debug -------------------- static final int dbg = 0;