-package mir.config;\r
-\r
-import java.io.*;\r
-import java.util.*;\r
-import java.lang.System;\r
-import org.xml.sax.helpers.DefaultHandler;\r
-import org.xml.sax.*;\r
-import javax.xml.parsers.ParserConfigurationException;\r
-import javax.xml.parsers.SAXParser;\r
-import javax.xml.parsers.SAXParserFactory;\r
-\r
-import mir.config.exceptions.*;\r
-import mir.misc.Location;\r
-\r
-public class ConfigReader {\r
- final static String propertyTagName="property";\r
- final static String propertyNameAttribute="name";\r
- final static String propertyValueAttribute="value";\r
- final static String defineTagName="define";\r
- final static String defineNameAttribute="name";\r
- final static String defineValueAttribute="value";\r
- final static String includeTagName="include";\r
- final static String includeFileAttribute="file";\r
-\r
- public ConfigReader() {\r
- super();\r
- };\r
-\r
- public void parseFile(String aFileName, ConfigNodeBuilder aRootNode) throws ConfigException {\r
-\r
- try {\r
- SAXParserFactory parserFactory = SAXParserFactory.newInstance();\r
-\r
- parserFactory.setNamespaceAware(false);\r
- parserFactory.setValidating(true);\r
-\r
-\r
- ConfigReaderHandler handler = new ConfigReaderHandler(aRootNode, parserFactory);\r
-\r
- handler.includeFile(aFileName);\r
- }\r
- catch (Throwable e) {\r
- if (e instanceof SAXParseException && ((SAXParseException) e).getException() instanceof ConfigException) {\r
- throw (ConfigException) ((SAXParseException) e).getException();\r
- }\r
- else {\r
- e.printStackTrace();\r
- throw new ConfigException( e.getMessage() );\r
- }\r
- }\r
- }\r
-\r
- private class ConfigReaderHandler extends DefaultHandler {\r
- ConfigNodeBuilder builder;\r
- Stack nodeStack;\r
- Locator locator;\r
- DefinesManager definesManager;\r
- int level;\r
- Stack includeFileStack;\r
- SAXParserFactory parserFactory;\r
-\r
- public ConfigReaderHandler(ConfigNodeBuilder aBuilder, SAXParserFactory aParserFactory) {\r
- super();\r
-\r
- builder=aBuilder;\r
- nodeStack=new Stack();\r
- includeFileStack=new Stack();\r
- definesManager=new DefinesManager();\r
- parserFactory=aParserFactory;\r
- level=0;\r
- }\r
-\r
- public String getLocatorDescription(Locator aLocator) {\r
- return aLocator.getPublicId()+" ("+aLocator.getLineNumber()+")";\r
- }\r
-\r
- public void setDocumentLocator(Locator aLocator) {\r
- locator=aLocator;\r
- }\r
-\r
- private void includeFile(String aFileName) throws ConfigException, SAXParseException, SAXException {\r
- File file;\r
- SAXParser parser;\r
- InputSource inputSource;\r
- System.err.println("about to include "+aFileName);\r
-\r
- try {\r
- if (!includeFileStack.empty())\r
- file = new File(new File((String) includeFileStack.peek()).getParent(), aFileName);\r
- else\r
- file = new File(aFileName);\r
-\r
- System.err.println("about to include "+file.getCanonicalPath());\r
-\r
- if (includeFileStack.contains(file.getCanonicalPath())) {\r
- throw new ConfigException("recursive inclusion of file "+file.getCanonicalPath(), getLocatorDescription(locator));\r
- }\r
-\r
- parser=parserFactory.newSAXParser();\r
-\r
- inputSource = new InputSource(new FileInputStream(file));\r
- inputSource.setPublicId(file.getCanonicalPath());\r
-\r
- includeFileStack.push(file.getCanonicalPath());\r
- try {\r
- parser.parse(inputSource, this);\r
- }\r
- finally {\r
- includeFileStack.pop();\r
- }\r
- }\r
- catch (ParserConfigurationException e) {\r
- throw new ConfigException("Internal exception while including \""+aFileName+"\": "+e.getMessage(), e, getLocatorDescription(locator));\r
- }\r
- catch (SAXParseException e) {\r
- throw e;\r
- }\r
- catch (ConfigException e) {\r
- throw e;\r
- }\r
- catch (FileNotFoundException e) {\r
- throw new ConfigException("Include file \""+aFileName+"\" not found: "+e.getMessage(), e, getLocatorDescription(locator));\r
- }\r
- catch (IOException e) {\r
- throw new ConfigException("unable to open include file \""+aFileName+"\": "+e.getMessage(), e, getLocatorDescription(locator));\r
- }\r
-\r
- }\r
-\r
- public void startElement(String aUri, String aTag, String aQualifiedName, Attributes anAttributes) throws SAXException {\r
- nodeStack.push(builder);\r
- level++;\r
- try {\r
- if (builder==null) {\r
- throw new ConfigException("define, include and property tags cannot have content", getLocatorDescription(locator));\r
- }\r
- if (aQualifiedName.equals(propertyTagName)) {\r
- String name=anAttributes.getValue(propertyNameAttribute);\r
- String value=anAttributes.getValue(propertyValueAttribute);\r
-\r
- if (name==null) {\r
- throw new ConfigException("property has no name attribute", getLocatorDescription(locator));\r
- }\r
- else\r
- if (value==null) {\r
- throw new ConfigException("property \""+name+"\" has no value attribute", getLocatorDescription(locator));\r
- }\r
-\r
- builder.addProperty(name, definesManager.resolve(value, getLocatorDescription(locator)), value, getLocatorDescription(locator));\r
- builder=null;\r
-\r
- }\r
- else if (aQualifiedName.equals(defineTagName)) {\r
- String name=anAttributes.getValue(defineNameAttribute);\r
- String value=anAttributes.getValue(defineValueAttribute);\r
-\r
- if (name==null) {\r
- throw new ConfigException("define has no name attribute", getLocatorDescription(locator));\r
- }\r
- else\r
- if (value==null) {\r
- throw new ConfigException("define \""+name+"\" has no value attribute", getLocatorDescription(locator));\r
- }\r
-\r
- definesManager.addDefine(name, definesManager.resolve(value, getLocatorDescription(locator)));\r
- builder=null;\r
- }\r
- else if (aQualifiedName.equals(includeTagName)) {\r
- String fileName=anAttributes.getValue(includeFileAttribute);\r
-\r
- if (fileName==null) {\r
- throw new ConfigException("include has no file attribute", getLocatorDescription(locator));\r
- }\r
-\r
- includeFile(definesManager.resolve(fileName, getLocatorDescription(locator)));\r
- builder=null;\r
- }\r
- else\r
- {\r
- builder=builder.makeSubNode(aQualifiedName, getLocatorDescription(locator));\r
- }\r
- }\r
- catch (ConfigException e) {\r
- throw new SAXParseException(e.getMessage(), locator, e);\r
- }\r
- }\r
-\r
- public void endElement(String aUri, String aTag, String aQualifiedName) throws SAXParseException {\r
- builder=(ConfigNodeBuilder) nodeStack.pop();\r
- level--;\r
- }\r
-\r
- public void characters(char[] aBuffer, int aStart, int anEnd) throws SAXParseException {\r
- String text = new String(aBuffer, aStart, anEnd).trim();\r
- if ( text.length() > 0) {\r
- throw new SAXParseException("Text not allowed", locator, new ConfigException("text not allowed", getLocatorDescription(locator)));\r
- }\r
- }\r
- }\r
-\r
- private class DefinesManager {\r
- Map defines;\r
-\r
- public DefinesManager() {\r
- defines = new HashMap();\r
- }\r
-\r
- public void addDefine(String aName, String anExpression) {\r
- defines.put(aName, anExpression);\r
- }\r
-\r
- public String resolve(String anExpression, String aLocation) throws ConfigException {\r
- int previousPosition = 0;\r
- int position;\r
- int endOfNamePosition;\r
- String name;\r
-\r
- StringBuffer result = new StringBuffer();\r
-\r
- while ((position=anExpression.indexOf("$", previousPosition))>=0) {\r
- result.append(anExpression.substring(previousPosition, position));\r
-\r
- if (position>=anExpression.length()-1) {\r
- result.append(anExpression.substring(position, anExpression.length()));\r
- previousPosition=anExpression.length();\r
- }\r
- else\r
- {\r
- if (anExpression.charAt(position+1) == '{') {\r
- endOfNamePosition=anExpression.indexOf('}', position);\r
- if (endOfNamePosition>=0) {\r
- name=anExpression.substring(position+2, endOfNamePosition);\r
- if (defines.containsKey(name)) {\r
- result.append((String) defines.get(name));\r
- previousPosition=endOfNamePosition+1;\r
- }\r
- else {\r
- throw new ConfigDefineNotKnownException("Variable \""+name+"\" not defined", aLocation);\r
- }\r
- }\r
- else {\r
- throw new ConfigException("Missing }", aLocation);\r
- }\r
-\r
- }\r
- else\r
- {\r
- previousPosition=position+2;\r
- result.append(anExpression.charAt(position+1));\r
- }\r
- }\r
- }\r
- result.append(anExpression.substring(previousPosition, anExpression.length()));\r
-\r
- return result.toString();\r
- }\r
- }\r
-}\r
-\r
-\r
+/*
+ * Copyright (C) 2001, 2002 The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with the com.oreilly.servlet library, any library
+ * licensed under the Apache Software License, The Sun (tm) Java Advanced
+ * Imaging library (JAI), The Sun JIMI library (or with modified versions of
+ * the above that use the same license as the above), and distribute linked
+ * combinations including the two. You must obey the GNU General Public
+ * License in all respects for all of the code used other than the above
+ * mentioned libraries. If you modify this file, you may extend this exception
+ * to your version of the file, but you are not obligated to do so. If you do
+ * not wish to do so, delete this exception statement from your version.
+ */
+package mir.config;
+
+import mir.config.exceptions.ConfigDefineNotKnownException;
+import mir.config.exceptions.ConfigFailure;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.InputSource;
+import org.xml.sax.Locator;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXParseException;
+
+import org.xml.sax.helpers.DefaultHandler;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Stack;
+
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
+
+
+public class ConfigReader {
+ final static String propertyTagName = "property";
+ final static String propertyNameAttribute = "name";
+ final static String propertyValueAttribute = "value";
+ final static String defineTagName = "define";
+ final static String defineNameAttribute = "name";
+ final static String defineValueAttribute = "value";
+ final static String includeTagName = "include";
+ final static String includeFileAttribute = "file";
+
+ public ConfigReader() {
+ super();
+ }
+
+ public void parseFile(String aFileName, ConfigNodeBuilder aRootNode)
+ throws ConfigFailure {
+ try {
+ SAXParserFactory parserFactory = SAXParserFactory.newInstance();
+
+ parserFactory.setNamespaceAware(false);
+ parserFactory.setValidating(true);
+
+ ConfigReaderHandler handler =
+ new ConfigReaderHandler(aRootNode, parserFactory);
+
+ handler.includeFile(aFileName);
+ } catch (Throwable e) {
+ if (e instanceof SAXParseException &&
+ ((SAXParseException) e).getException() instanceof ConfigFailure) {
+ throw (ConfigFailure) ((SAXParseException) e).getException();
+ } else {
+ e.printStackTrace();
+ throw new ConfigFailure(e.getMessage());
+ }
+ }
+ }
+
+ private class ConfigReaderHandler extends DefaultHandler {
+ ConfigNodeBuilder builder;
+ Stack nodeStack;
+ Locator locator;
+ DefinesManager definesManager;
+ int level;
+ Stack includeFileStack;
+ SAXParserFactory parserFactory;
+
+ public ConfigReaderHandler(ConfigNodeBuilder aBuilder,
+ SAXParserFactory aParserFactory) {
+ super();
+
+ builder = aBuilder;
+ nodeStack = new Stack();
+ includeFileStack = new Stack();
+ definesManager = new DefinesManager();
+ parserFactory = aParserFactory;
+ level = 0;
+ }
+
+ public String getLocatorDescription(Locator aLocator) {
+ return aLocator.getPublicId() + " (" + aLocator.getLineNumber() + ")";
+ }
+
+ public void setDocumentLocator(Locator aLocator) {
+ locator = aLocator;
+ }
+
+ private void includeFile(String aFileName)
+ throws ConfigFailure, SAXParseException, SAXException {
+ File file;
+ SAXParser parser;
+ InputSource inputSource;
+ System.err.println("about to include " + aFileName);
+
+ try {
+ if (!includeFileStack.empty()) {
+ file =
+ new File(new File((String) includeFileStack.peek()).getParent(),
+ aFileName);
+ } else {
+ file = new File(aFileName);
+ }
+
+ System.err.println("about to include " + file.getCanonicalPath());
+
+ if (includeFileStack.contains(file.getCanonicalPath())) {
+ throw new ConfigFailure("recursive inclusion of file " +
+ file.getCanonicalPath(), getLocatorDescription(locator));
+ }
+
+ parser = parserFactory.newSAXParser();
+
+ inputSource = new InputSource(new FileInputStream(file));
+ inputSource.setPublicId(file.getCanonicalPath());
+
+ includeFileStack.push(file.getCanonicalPath());
+
+ try {
+ parser.parse(inputSource, this);
+ } finally {
+ includeFileStack.pop();
+ }
+ } catch (ParserConfigurationException e) {
+ throw new ConfigFailure("Internal exception while including \"" +
+ aFileName + "\": " + e.getMessage(), e, getLocatorDescription(locator));
+ } catch (SAXParseException e) {
+ throw e;
+ } catch (ConfigFailure e) {
+ throw e;
+ } catch (FileNotFoundException e) {
+ throw new ConfigFailure("Include file \"" + aFileName +
+ "\" not found: " + e.getMessage(), e, getLocatorDescription(locator));
+ } catch (IOException e) {
+ throw new ConfigFailure("unable to open include file \"" + aFileName +
+ "\": " + e.getMessage(), e, getLocatorDescription(locator));
+ }
+ }
+
+ public void startElement(String aUri, String aTag, String aQualifiedName,
+ Attributes anAttributes) throws SAXException {
+ nodeStack.push(builder);
+ level++;
+
+ try {
+ if (builder == null) {
+ throw new ConfigFailure("define, include and property tags cannot have content",
+ getLocatorDescription(locator));
+ }
+
+ if (aQualifiedName.equals(propertyTagName)) {
+ String name = anAttributes.getValue(propertyNameAttribute);
+ String value = anAttributes.getValue(propertyValueAttribute);
+
+ if (name == null) {
+ throw new ConfigFailure("property has no name attribute",
+ getLocatorDescription(locator));
+ } else if (value == null) {
+ throw new ConfigFailure("property \"" + name +
+ "\" has no value attribute", getLocatorDescription(locator));
+ }
+
+ builder.addProperty(name,
+ definesManager.resolve(value, getLocatorDescription(locator)),
+ value, getLocatorDescription(locator));
+ builder = null;
+ } else if (aQualifiedName.equals(defineTagName)) {
+ String name = anAttributes.getValue(defineNameAttribute);
+ String value = anAttributes.getValue(defineValueAttribute);
+
+ if (name == null) {
+ throw new ConfigFailure("define has no name attribute",
+ getLocatorDescription(locator));
+ } else if (value == null) {
+ throw new ConfigFailure("define \"" + name +
+ "\" has no value attribute", getLocatorDescription(locator));
+ }
+
+ definesManager.addDefine(name,
+ definesManager.resolve(value, getLocatorDescription(locator)));
+ builder = null;
+ } else if (aQualifiedName.equals(includeTagName)) {
+ String fileName = anAttributes.getValue(includeFileAttribute);
+
+ if (fileName == null) {
+ throw new ConfigFailure("include has no file attribute",
+ getLocatorDescription(locator));
+ }
+
+ includeFile(definesManager.resolve(fileName,
+ getLocatorDescription(locator)));
+ builder = null;
+ } else {
+ builder =
+ builder.makeSubNode(aQualifiedName, getLocatorDescription(locator));
+ }
+ } catch (ConfigFailure e) {
+ throw new SAXParseException(e.getMessage(), locator, e);
+ }
+ }
+
+ public void endElement(String aUri, String aTag, String aQualifiedName)
+ throws SAXParseException {
+ builder = (ConfigNodeBuilder) nodeStack.pop();
+ level--;
+ }
+
+ public void characters(char[] aBuffer, int aStart, int anEnd)
+ throws SAXParseException {
+ String text = new String(aBuffer, aStart, anEnd).trim();
+
+ if (text.length() > 0) {
+ throw new SAXParseException("Text not allowed", locator,
+ new ConfigFailure("text not allowed", getLocatorDescription(locator)));
+ }
+ }
+ }
+
+ private class DefinesManager {
+ Map defines;
+
+ public DefinesManager() {
+ defines = new HashMap();
+ }
+
+ public void addDefine(String aName, String anExpression) {
+ defines.put(aName, anExpression);
+ }
+
+ public String resolve(String anExpression, String aLocation)
+ throws ConfigFailure {
+ int previousPosition = 0;
+ int position;
+ int endOfNamePosition;
+ String name;
+
+ StringBuffer result = new StringBuffer();
+
+ while ((position = anExpression.indexOf("$", previousPosition)) >= 0) {
+ result.append(anExpression.substring(previousPosition, position));
+
+ if (position >= (anExpression.length() - 1)) {
+ result.append(anExpression.substring(position, anExpression.length()));
+ previousPosition = anExpression.length();
+ } else {
+ if (anExpression.charAt(position + 1) == '{') {
+ endOfNamePosition = anExpression.indexOf('}', position);
+
+ if (endOfNamePosition >= 0) {
+ name = anExpression.substring(position + 2, endOfNamePosition);
+
+ if (defines.containsKey(name)) {
+ result.append((String) defines.get(name));
+ previousPosition = endOfNamePosition + 1;
+ } else {
+ throw new ConfigDefineNotKnownException("Variable \"" + name +
+ "\" not defined", aLocation);
+ }
+ } else {
+ throw new ConfigFailure("Missing }", aLocation);
+ }
+ } else {
+ previousPosition = position + 2;
+ result.append(anExpression.charAt(position + 1));
+ }
+ }
+ }
+
+ result.append(anExpression.substring(previousPosition,
+ anExpression.length()));
+
+ return result.toString();
+ }
+ }
+}
projects / mir.git / blobdiff