diff options
Diffstat (limited to 'tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/common/Utils.java')
| -rw-r--r-- | tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/common/Utils.java | 543 |
1 files changed, 0 insertions, 543 deletions
diff --git a/tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/common/Utils.java b/tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/common/Utils.java deleted file mode 100644 index 5bd80fc37a..0000000000 --- a/tags/cpp-0.1.incubating-M1-RC3b/sca/tools/scagen/src/org/apache/tuscany/sca/cpp/tools/common/Utils.java +++ /dev/null @@ -1,543 +0,0 @@ -/* -* -* Copyright 2005 The Apache Software Foundation or its licensors, as applicable. -* -* Licensed under the Apache License, Version 2.0 (the "License"); -* you may not use this file except in compliance with the License. -* You may obtain a copy of the License at -* -* http://www.apache.org/licenses/LICENSE-2.0 -* -* Unless required by applicable law or agreed to in writing, software -* distributed under the License is distributed on an "AS IS" BASIS, -* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -* See the License for the specific language governing permissions and -* limitations under the License. -*/ - -/* -* Branched from the original class that was also contributed to the -* org.apache.axis.tools.common package. -* -*/ -package org.apache.tuscany.sca.cpp.tools.common; - -import java.io.File; -import java.util.Arrays; -import java.util.HashSet; -import java.util.Set; - -//Apache Common Logging -//import org.apache.commons.logging.Log; -//import org.apache.commons.logging.LogFactory; - -/** -* Static utility methods. Some of these methods are similar to the methods on -* java.lang.String except they are aware of C/C++ comments and string literals. -* -* TODO: Many of these methods would perform better using StringBuffer not -* String -*/ -public final class Utils { - // All the C primitive data types - public final static Set cPrimitives = new HashSet(Arrays - .asList(new Object[] { "void", "byte", "char", "unsigned", - "signed", "int", "short", "long", "double", "float", - "struct", "class", "enum", "union" })); - - // All the qualifiers that can affect C types - public final static Set cTypeQualifiers = new HashSet( - Arrays.asList(new Object[] { "(", ")", "*", ",", "&", "]", "[", - "const" })); - - public final static String whitespace = " \t\r\n"; - - //private static Log log = LogFactory.getLog(CLASS.class); - - /** - * Never instantiate this class - */ - private Utils() { - } - - /** - * Is this string all whitespace? - */ - static boolean isSpace(String s) { - for (int i = 0; i < s.length(); i++) - if (!Character.isWhitespace(s.charAt(i))) - return false; - return true; - } - - // TODO look for other trailing chars like { (because of class{) - static boolean startsWith(String source, String target) { - if (source == null || target == null) - return false; - if (!source.startsWith(target)) - return false; - if (source.length() == target.length()) - return true; - if (Character.isWhitespace(source.charAt(target.length()))) - return true; - return false; - } - - /** - * Performs a C-aware version of String.indexOf(char) in that it skips - * characters in string literals and comments. - */ - static int indexOf(String s, char c) throws ParsingException { - if ('"' == c) - rude("Utils.indexOf cannot be passed quotes"); - - for (int i = 0; i < s.length(); i++) { - if (s.charAt(i) == c) - return i; - - i = skip(s.substring(i), i); - if (-1 == i) - return -1; - } - return -1; - } - - /** - * Performs a C-aware version of String.indexOf(String) in that it skips - * characters in string literals and comments and makes sure that the target - * string is not embedded in a longer word. - */ - static int indexOf(String s, String t) { - char t0 = t.charAt(0); - for (int i = 0; i < s.length(); i++) { - if (s.charAt(i) == t0 - && s.substring(i).startsWith(t) - && (0 == i || !Character.isLetterOrDigit(s.charAt(i - 1))) - && (s.length() == (i + t.length()) || !Character - .isLetterOrDigit(s.charAt(i + t.length())))) - return i; - - i = skip(s.substring(i), i); - if (-1 == i) - return -1; - } - return -1; - } - - /** - * Matches braces or quotes and is C-aware. It skips characters in string - * literals and comments. - */ - static int findMatching(String s, char c1, char c2) { - int depth = 0; - for (int i = 0; i < s.length(); i++) { - if (s.charAt(i) == c1) - depth++; - else if (s.charAt(i) == c2) { - depth--; - if (depth == 0) - return i; - } else { - i = skip(s.substring(i), i); - if (-1 == i) - return -1; - } - } - return -1; - } - - /** - * Failed to parse the source code for some reason. This method prints out a - * suitably rude message, and then what? I haven't quite decided yet. - * - * TODO: Do something sensible here like throw an Exception which will give - * up on this file completely and tidy up the output file. It may be just - * too dangerous to try to carry on. But we need to fail in such a way that - * the build system knows that we've failed for this file and can build this - * file without trace. - */ - public static void rude(String reason, String filename, int lineno, - String codefragment) throws ParsingException { - - String text = "Bad C++ code!! "; - if (reason != null) - text += reason; - if (filename != null) - text += " " + filename + " lineno=" + lineno; - if (codefragment != null) - text += " <" + codefragment + ">"; - System.err.println(text); - throw new ParsingException(); - } - - /** - * This method reports an error level problem - * - * @param reason - * why we have an error level problem - */ - public static void rude(String reason) throws ParsingException { - // Apache commons logging - // log.error(Object line, null); - // or for now.... - rude(reason, null, 0, null); - } - - /** - * This method reports an error level problem - * - * @param reason - * why we have an error level problem - */ - public static void screenMessage(String msg) { - // Apache commons logging - // log.error(Object line, null); - // or for now.... - System.out.println(msg); - } - - /** - * Escapes special characters like " so that they can be output in a C - * string literal. Also removes newlines, since C string literals can't be - * split over lines. - */ - String pretty(String s) { - StringBuffer sb = new StringBuffer(s); - for (int i = 0; i < sb.length(); i++) - switch (sb.charAt(i)) { - case '"': - sb = sb.insert(i, '\\'); - i++; - break; - case '\n': - sb = sb.deleteCharAt(i); - i--; - break; - } - return sb.toString(); - } - - private static boolean startsWithComment(String s) { - if (null == s || s.length() < 2) - return false; - if (s.startsWith("//")) - return true; - if (s.startsWith("/*")) - return true; - return false; - } - - private static int endOfComment(String s) { - int idx; - if (s.startsWith("//")) - idx = s.indexOf("\n"); - else { - idx = s.indexOf("*/"); - if (-1 != idx) - idx++; // Step over */ - } - return idx; - } - - private static boolean startsWithStringLiteral(String s) { - if (null == s || s.length() < 1) - return false; - if (s.startsWith("\"") || s.startsWith("'")) - return true; - return false; - } - - private static int endOfStringLiteral(String s) { - boolean escape = false; - char c0 = s.charAt(0); - for (int i = 1; i < s.length(); i++) { - if (!escape && s.charAt(i) == c0) - return i; - - // \" or \' does not end the literal - if ('\\' == s.charAt(i)) - // Escaping a \ should switch escape off so \\' does end - // the literal - escape = !escape; - else - escape = false; - } - return -1; - } - - /** - * If the String s starts with a string literal or a comment, return i plus - * the index of the end of the literal or comment. String literals are - * enclosed in " or ' and comments start with /* or //. - */ - private static int skip(String s, int i) { - int j = 0; - if (startsWithStringLiteral(s)) { - j = endOfStringLiteral(s); - if (-1 == j) - return -1; - } else if (startsWithComment(s)) { - j = endOfComment(s); - if (-1 == j) - return -1; - } - return i + j; - } - - /** - * A better method than .equals() because it doesn't NullPointerException - * when one of the parameters is null. - */ - public static boolean safeEquals(Object o1, Object o2) { - if (null == o1 && null == o2) - return true; - if (null == o1 && null != o2) - return false; - if (null != o1 && null == o2) - return false; - return o1.equals(o2); - } - - public static void outputDebugString(String line) { - if (!Options.quiet()) { - if (Options.debug()) - // Apache commons logging - // log.debug(Object line, null); - // or for now - System.out.println(line); - } - } - - /** - * This static method allows different parts of the code to inform about - * significant events. Code interested in specific types of event can - * register a listener against that type (not written yet) - * - * @param eventType - * An int type enum indicating the type of event. - * @param message - * A message that can be output to the user. - */ - public static final int EVENT_TYPE_XML_ITEM_PARSED = 1; - - public static final int EVENT_TYPE_FILE_PARSED = 2; - - public static final int EVENT_TYPE_FILE_CREATE = 3; - - public static final int VERBOSE_LIMIT = 1024; - - public static final int DEPLOYMENT_ARTEFACT = VERBOSE_LIMIT; - - public static final int DEPLOYMENT_ARTEFACT_ENCOUNTERED = DEPLOYMENT_ARTEFACT + 1; - - public static final int DEPLOYMENT_ARTEFACT_GENERATED = DEPLOYMENT_ARTEFACT + 2; - - public static final int DEPLOYMENT_INPUT_DIRECTORY = DEPLOYMENT_ARTEFACT + 3; - - public static final int DEPLOYMENT_OUTPUT_DIRECTORY = DEPLOYMENT_ARTEFACT + 4; - - private static boolean reportArtefacts = false; - - /** - * An easily callable method to allow tracking/reposting of events in scagen - * and other tools. - * - * @param eventType - * used for classifying event - * @param message - * a user readable message - */ - public static void postEvent(int eventType, String message) { - if (Options.verbose() && eventType < VERBOSE_LIMIT) { - screenMessage(message); - } - - if ((eventType & DEPLOYMENT_ARTEFACT) > 0) { - reportArtefact(message, eventType); - } - - } - - /** - * @param message - * The user message - * @param eventType - * The type of event (input or output). This is used to determine - * if the path name of the file starts with the MODULE_ROOT - * directory or the given output directory as the one of these - * prefixes is removed from the path name in order to give the - * new (destination) path relative to the new module root - * - * - */ - - static String scagenInputDir = "MODULE_ROOT"; - - static String scagenOutputDir = "SCAGEN_OUTPUT"; - - static String newModuleRoot = "NEW_MODULE_ROOT"; - - static String generatedDirName = "$sourceDir1"; - - private static void reportArtefact(String message, int eventType) { - - if (Utils.isReportArtefacts()) { - - // Changing the value of the variable below will alter the output of - // the - // deploy assist strings: - // true will result in a "copy source NEW_MODULE_ROOT\dest" output - // and - // false will result in a "inputDir c:\fred" - // "outputDir c:\bob" - // "input c:\fred\sca.module" - // "output c:\bob\proxy.h" type output - String command = null; - - try { - newModuleRoot = (String) Options.getOption("-deploy"); - command = (String) Options.getOption("-command"); - } catch (Exception e) { - // let it default - } - - if (null == newModuleRoot) { - newModuleRoot = "DEPLOY_MODULE_ROOT"; - } - - if (null == command) { - command = "copy"; - } - - if (Options.outputCommand()) { - - String tail = message; - switch (eventType) { - case DEPLOYMENT_ARTEFACT_ENCOUNTERED: - if (message.startsWith(scagenInputDir)) { - tail = message.substring(scagenInputDir.length()); - } - - String dest = joinPathElements(newModuleRoot, tail); - - System.out.println(command + " " + platformSlashes(message) - + " " + platformSlashes(dest)); - break; - - case DEPLOYMENT_ARTEFACT_GENERATED: - if (message.startsWith(scagenOutputDir)) { - tail = message.substring(scagenOutputDir.length()); - } - - dest = joinPathElements(newModuleRoot, tail); - System.out.println(command + " " + platformSlashes(message) - + " " + platformSlashes(dest)); - break; - case DEPLOYMENT_INPUT_DIRECTORY: - scagenInputDir = message; - //System.out.println("inputDir " + message); - break; - case DEPLOYMENT_OUTPUT_DIRECTORY: - scagenOutputDir = message; - //System.out.println("outputDir " + message); - break; - default: - break; - } - - } else { - - if (Options.list()) { - switch (eventType) { - case DEPLOYMENT_ARTEFACT_ENCOUNTERED: - case DEPLOYMENT_ARTEFACT_GENERATED: - System.out.println(platformSlashes(message)); - break; - case DEPLOYMENT_INPUT_DIRECTORY: - case DEPLOYMENT_OUTPUT_DIRECTORY: - default: - break; - } - } else { - switch (eventType) { - case DEPLOYMENT_ARTEFACT_ENCOUNTERED: - //TODO make efficient - System.out.println("$sourceDir1" - + platformSlashes(message.substring(scagenInputDir.length()))); - break; - case DEPLOYMENT_ARTEFACT_GENERATED: - //TODO make efficient - System.out.println(generatedDirName - + platformSlashes(message.substring(scagenOutputDir.length()))); - break; - case DEPLOYMENT_INPUT_DIRECTORY: - scagenInputDir = platformSlashes(message); - System.out.println("sourceDir1=" + scagenInputDir); - break; - case DEPLOYMENT_OUTPUT_DIRECTORY: - scagenOutputDir = platformSlashes(message); - if (!scagenInputDir.equals(scagenOutputDir)) { - generatedDirName = "$sourceDir2"; - System.out.println("sourceDir2=" + scagenOutputDir); - } else { - //generatedDirName = "sourceDir1"; - } - break; - default: - break; - } - } - } - } - } - - /** - * @param tail - * @param tail - * @return - */ - public static String joinPathElements(String root, String tail) { - String separator; - // Stick in a "/" (File.separator) if required. - if ((tail.substring(0, 1).equals("/") || newModuleRoot.substring( - root.length() - 1, root.length()).equals("/")) - || (tail.substring(0, 1).equals("\\") || root.substring( - root.length() - 1, root.length()).equals("\\")) - - ) { - separator = ""; - } else { - separator = File.separator; - } - String dest = newModuleRoot + separator + tail; - return dest; - } - - /** - * @param reportArtefacts - * The reportArtefacts to set. - */ - public static void setReportArtefacts(boolean reportArtefacts) { - Utils.reportArtefacts = reportArtefacts; - } - - /** - * @return Returns the reportArtefacts. - */ - private static boolean isReportArtefacts() { - return reportArtefacts; - } - - private static String platformSlashes(String path) { - if (null == path) { - return path; - } - // We need a double level of \\ escapes if the slashes are - // this way round. - String separatorForRegex = File.separator - .replaceAll("\\\\", "\\\\\\\\"); - return path.replaceAll("[/\\\\]+", separatorForRegex); - - } - -}
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