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net.jaekl.qd.xml.ParseResult
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hit countmethod namemethod modifiersmethod signature
1<clinit>[static]void <clinit>()
45<init>[public]void <init>(java.lang.String,java.lang.String[],java.lang.Object[][])
195characters[public]void characters(char[],int,int)
20collectParsedChildren[protected]net.jaekl.qd.xml.ParseResult[] collectParsedChildren(java.lang.Class)
216endElement[public]boolean endElement(java.lang.String,java.lang.String,java.lang.String)
1getTagName[public]java.lang.String getTagName()
0haveSeenMyTag[public]boolean haveSeenMyTag()
255startElement[public]net.jaekl.qd.xml.ParseResult startElement(java.lang.String,java.lang.String,java.lang.String,org.xml.sax.Attributes)
31validate[public]void validate()
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 1 
 // Copyright (C) 2004, 2014 Christian Jaekl
 2 
 
 3 
 // Abstract class representing the result of parsing an XML Element.
 4 
 // A class derived from this one will know how to parse a subtree inside an XML file, and
 5 
 // will contain the result of that parse within itself when the parse has completed.
 6 
 //
 7 
 // Note that this code will need to be augmented and fixed if XML namespace support is desired.
 8 
 
 9 
 package net.jaekl.qd.xml;
 10 
 
 11 
 import java.util.ArrayList;
 12 
 import java.util.HashMap;
 13 
 import java.util.HashSet;
 14 
 import java.util.Iterator;
 15 
 import java.util.Stack;
 16 
 
 17 
 import org.xml.sax.Attributes;
 18 
 
 19 Block: 1/1 
 public abstract class ParseResult
 20 
 {
 21 
 	Stack<String> m_current;									// Name of the element that we're currently inside
 22 
 	StringBuilder m_chars;										// character content of m_current.peek()
 23 
 	ArrayList<ParseResult> m_childParsers;						// Set of all child parsers
 24 
 	boolean m_haveSeenMyTag;									// Have I encountered my own (root) tag yet?
 25 
 
 26 
 	String m_tagName;											// Name of the (root) element tag that I'm parsing
 27 
 	HashSet<String> m_internal;									// Tags that we will store as members of this class instance
 28 
 	HashMap<String,Class<? extends ParseResult>> m_external;	// Tags that we will store as child ParseResult-derived objects
 29 
 
 30 
 	@SuppressWarnings("unchecked")
 31 
 	public ParseResult(String tagName, String[] internalMemberTags, Object[][] externalParserTags)
 32 Block: 1/1 
 	{
 33 
 		m_current = new Stack<String>();
 34 
 		m_chars = new StringBuilder();
 35 
 		m_childParsers = new ArrayList<ParseResult>();
 36 
 		m_haveSeenMyTag = false;
 37 
 
 38 
 		m_tagName = tagName;
 39 
 		m_internal = new HashSet<String>();
 40 
 		m_external = new HashMap<String, Class<? extends ParseResult>>();
 41 
 
 42 
 		for (String internalTag : internalMemberTags) {
 43 Block: 1/1 Branch: 1/1 
 			m_internal.add(internalTag);
 44 
 		}
 45 
 
 46 Block: 1/1 Branch: 1/1 
 		for (int idx = 0; idx < externalParserTags.length; ++idx) {
 47 Block: 1/1 Branch: 1/1 
 			String externalTag = (String)externalParserTags[idx][0];
 48 
 			Class<? extends ParseResult>  parserClass = (Class<? extends ParseResult>)externalParserTags[idx][1];
 49 
 			m_external.put(externalTag, parserClass);
 50 
 		}
 51 Block: 1/1 Branch: 1/1 
 	}
 52 
 
 53 
 	public abstract void endContents(String uri, String localName, String qName, String chars) throws XmlParseException;
 54 
 	public abstract void endExternal(String uri, String localName, String qName) throws XmlParseException;
 55 
 
 56 Block: 1/1 
 	public String getTagName() { return m_tagName; }
 57 Block: 0/1 
 	public boolean haveSeenMyTag() { return m_haveSeenMyTag; }
 58 
 
 59 
 	public void characters(char[] ch, int start, int length) throws XmlParseException
 60 
 	{
 61 Block: 1/1 
 		m_chars.append(ch, start, length);
 62 
 	}
 63 
 
 64 
 	protected ParseResult[] collectParsedChildren(Class<? extends ParseResult> cls) {
 65 Block: 1/1 
 		ArrayList<ParseResult> collection = new ArrayList<ParseResult>();
 66 
 		Iterator<ParseResult> iter = m_childParsers.iterator();
 67 Block: 1/1 
 		while (iter.hasNext()) {
 68 Block: 1/1 Branch: 1/1 
 			ParseResult pr = iter.next();
 69 
 			if (pr.getClass().isAssignableFrom(cls)) {
 70 Block: 1/1 Branch: 1/1 
 				collection.add(pr);
 71 
 				iter.remove();
 72 
 			}
 73 Block: 1/1 Branch: 0/1 
 		}
 74 
 
 75 Block: 1/1 Branch: 1/1 
 		ParseResult[] result = new ParseResult[collection.size()];
 76 
 		return collection.toArray(result);
 77 
 	}
 78 
 
 79 
 	// returns true if this ParseResult's context has ended with this endElement() call
 80 
 	public boolean endElement(String uri, String localName, String qName) throws XmlParseException
 81 
 	{
 82 Block: 1/1 
 		assert (null != localName);
 83 
 
 84 Block: 1/1 Branch: 1/2 
 		boolean isInternal = m_internal.contains(localName);
 85 
 
 86 
 		if (! m_haveSeenMyTag) {
 87 
 			// We're in some unrecognised prologue.  Ignore it and move on.
 88 Block: 1/1 Branch: 1/1 
 			return false;
 89 
 		}
 90 
 
 91 Block: 1/1 Branch: 1/1 
 		if (m_tagName.equals(localName)) {
 92 Block: 1/1 Branch: 1/1 
 			validate();
 93 
 			return true;
 94 
 		}
 95 
 
 96 Block: 1/1 Branch: 1/1 
 		if (!isInternal) {
 97 
 			// Unrecognized tag.  Ignore it.
 98 Block: 1/1 Branch: 1/1 
 			return false;
 99 
 		}
 100 
 
 101 Block: 1/1 Branch: 1/1 
 		String tag = m_current.pop();
 102 
 		if ( ! tag.equals(localName) ) {
 103 Block: 0/1 Branch: 0/1 
 			throw new MismatchedTagsException(tag, localName);
 104 
 		}
 105 
 
 106 Block: 1/1 Branch: 1/1 
 		String chars = m_chars.toString();
 107 
 		endContents(uri, localName, qName, chars);
 108 
 
 109 
 		return false;
 110 
 	}
 111 
 
 112 
 	// returns either itself, or a new ParseResult-derived object, whichever should handle parsing the inside of this element
 113 
 	public ParseResult startElement(String uri, String localName, String qName, Attributes attributes)
 114 
 			throws XmlParseException
 115 
 	{
 116 Block: 1/1 
 		assert (null != localName);
 117 
 
 118 Block: 1/1 Branch: 1/2 
 		m_chars.setLength(0);
 119 
 
 120 
 		if (! m_haveSeenMyTag) {
 121 
 			// Have we opened our own (root) tag yet?
 122 
 
 123 Block: 1/1 Branch: 1/1 
 			if (m_tagName.equals(localName)) {
 124 Block: 1/1 Branch: 1/1 
 				m_haveSeenMyTag = true;
 125 
 				return this;
 126 
 			}
 127 
 			else {
 128 
 				// One of two things has happened here.
 129 
 				// Either (a) we've got some sort of wrapper here, and have not yet reach our own tag,
 130 
 				//     or (b) we're parsing XML that doesn't match expectations.
 131 
 				// In either case, we're going to ignore this tag, and scan forward looking for our own root.
 132 Block: 1/1 Branch: 1/1 
 				return this;
 133 
 			}
 134 
 		}
 135 
 
 136 Block: 1/1 Branch: 1/1 
 		if (m_internal.contains(localName)) {
 137 Block: 1/1 Branch: 1/1 
 			m_current.push(localName);
 138 
 			return this;
 139 
 		}
 140 
 
 141 Block: 1/1 Branch: 1/1 
 		Class<? extends ParseResult> parserClass = m_external.get(localName);
 142 
 		if (null != parserClass) {
 143 
 			try {
 144 Block: 1/1 Branch: 1/1 
 				ParseResult childParser = (ParseResult) parserClass.newInstance();
 145 
 				m_childParsers.add(childParser);
 146 
 				return childParser.startElement(uri, localName, qName, attributes);
 147 
 			}
 148 Block: 0/1 
 			catch (IllegalAccessException iae) {
 149 
 				throw new XmlParseException(iae);
 150 
 			}
 151 Block: 0/1 
 			catch (InstantiationException ie) {
 152 
 				throw new XmlParseException(ie);
 153 
 			}
 154 
 		}
 155 
 
 156 
 		// Not a recognized tag.  Ignore it, rather than complaining.
 157 Block: 1/1 Branch: 1/1 
 		return this;
 158 
 	}
 159 
 
 160 
 	public void validate() throws XmlParseException
 161 
 	{
 162 
 		// Default implementation is a no-op.
 163 
 		// Override if you want to validate on endElement()
 164 Block: 1/1 
 	}
 165 
 }
 166 
 
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Report generated 11/12/14 11:31 PM
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