Thread: [Pzfilereader-svn] SF.net SVN: pzfilereader: [136] trunk/PZFileReader/src/main/java/net/sf/ pzfile

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Revision: 136
          http://svn.sourceforge.net/pzfilereader/?rev=136&view=rev
Author:   zepernick
Date:     2006-10-26 17:25:58 -0700 (Thu, 26 Oct 2006)

Log Message:
-----------
ParserUtils for fixed width files

Added Paths:
-----------
    trunk/PZFileReader/src/main/java/net/sf/pzfilereader/util/FixedWidthParserUtils.java

Added: trunk/PZFileReader/src/main/java/net/sf/pzfilereader/util/FixedWidthParserUtils.java
===================================================================

--- trunk/PZFileReader/src/main/java/net/sf/pzfilereader/util/FixedWidthParserUtils.java	                        (rev 0)
+++ trunk/PZFileReader/src/main/java/net/sf/pzfilereader/util/FixedWidthParserUtils.java	2006-10-27 00:25:58 UTC (rev 136)
@@ -0,0 +1,122 @@
+/*
+ * ObjectLab, http://www.objectlab.co.uk/open is supporting PZFileReader.
+ * 
+ * Based in London, we are world leaders in the design and development 
+ * of bespoke applications for the securities financing markets.
+ * 
+ * <a href="http://www.objectlab.co.uk/open">Click here to learn more</a>
+ *           ___  _     _           _   _          _
+ *          / _ \| |__ (_) ___  ___| |_| |    __ _| |__
+ *         | | | | '_ \| |/ _ \/ __| __| |   / _` | '_ \
+ *         | |_| | |_) | |  __/ (__| |_| |__| (_| | |_) |
+ *          \___/|_.__// |\___|\___|\__|_____\__,_|_.__/
+ *                   |__/
+ *
+ *                     www.ObjectLab.co.uk
+ *
+ * $Id: ColorProvider.java 74 2006-10-24 22:19:05Z benoitx $
+ * 
+ * Copyright 2006 the original author or authors.
+ *
+ * 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.
+ */
+package net.sf.pzfilereader.util;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import net.sf.pzfilereader.structure.ColumnMetaData;
+import net.sf.pzfilereader.xml.XMLRecordElement;
+
+/**
+ * Collection of parser utilities related to the parsing of
+ * fixed width files.
+ * 
+ * @author paul zepernick
+ */
+public class FixedWidthParserUtils {
+    private FixedWidthParserUtils(){        
+    }
+    
+    /**
+     * Splits up a fixed width line of text
+     * 
+     * @param columnMetaData
+     *          Collection of ColumnMetaData to parse the line
+     * @param lineToParse
+     *          Line of text to be parsed against the ColumnMetaData
+     * @return List
+     *          Collection of Strings.  Each element representing a column
+     */
+    public static List splitFixedText(final List columnMetaData, final String lineToParse){
+        final List splitResult = new ArrayList();
+        int recPosition = 1;
+        for (int i = 0; i < columnMetaData.size(); i++) {
+            final ColumnMetaData colMetaDataObj = (ColumnMetaData)columnMetaData.get(i);
+            final String tempValue = lineToParse.substring(recPosition - 1, recPosition
+                    + colMetaDataObj.getColLength() - 1);
+            recPosition += colMetaDataObj.getColLength();
+            splitResult.add(tempValue.trim());
+        }   
+        
+        return splitResult;
+    }
+    
+    /**
+     * Returns the key to the list of ColumnMetaData objects. Returns the
+     * correct MetaData per the mapping file and the data contained on the line
+     * 
+     * 
+     * @param columnMD
+     * @param line
+     * @return List - ColumMetaData
+     */
+    public static String getCMDKey(final Map columnMD, final String line) {
+        if (columnMD.size() == 1) {
+            // no <RECORD> elments were specifed for this parse, just return the
+            // detail id
+            return PZConstants.DETAIL_ID;
+        }
+        final Iterator keys = columnMD.keySet().iterator();
+        // loop through the XMLRecordElement objects and see if we need a
+        // different MD object
+        while (keys.hasNext()) {
+            final String key = (String) keys.next();
+            if (key.equals(PZConstants.DETAIL_ID) || key.equals(PZConstants.COL_IDX)) {
+                continue; // skip this key will be assumed if none of the
+                // others match
+            }
+            final XMLRecordElement recordXMLElement = (XMLRecordElement) columnMD.get(key);
+
+            if (recordXMLElement.getEndPositition() > line.length()) {
+                // make sure our substring is not going to fail
+                continue;
+            }
+            final int subfrm = recordXMLElement.getStartPosition() - 1; // convert
+            // to 0
+            // based
+            final int subto = recordXMLElement.getEndPositition();
+            if (line.substring(subfrm, subto).equals(recordXMLElement.getIndicator())) {
+                // we found the MD object we want to return
+                return key;
+            }
+
+        }
+
+        // must be a detail line
+        return PZConstants.DETAIL_ID;
+
+    }
+}


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Thread: [Pzfilereader-svn] SF.net SVN: pzfilereader: [136] trunk/PZFileReader/src/main/java/net/sf/ pzfile

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