usermodel support for excel hyperlinks

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@617834 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/hssf/dev/BiffViewer.java

@@ -515,6 +515,9 @@ public class BiffViewer {
             case FileSharingRecord.sid:
                 retval = new FileSharingRecord( in );
                 break;
+            case HyperlinkRecord.sid:
+                retval = new HyperlinkRecord( in );
+                break;
             default:
                 retval = new UnknownRecord( in );
         }

src/java/org/apache/poi/hssf/record/HyperlinkRecord.java

@@ -195,7 +195,7 @@ public class HyperlinkRecord extends Record implements CellValueRecordInterface
         field_5_unknown = new byte[16];
         try {
         in.read(field_5_unknown);
-        } catch(IOException e) { throw new IllegalStateException(e); }
+        } catch(IOException e) { throw new IllegalStateException(e.getMessage()); }
         
         // Some sort of opts
         field_6_label_opts = in.readInt();
@@ -212,7 +212,7 @@ public class HyperlinkRecord extends Record implements CellValueRecordInterface
         field_10_unknown = new byte[16];
         try {
         in.read(field_10_unknown);
-        } catch(IOException e) { throw new IllegalStateException(e); }
+        } catch(IOException e) { throw new IllegalStateException(e.getMessage()); }
         
         // Might need to nudge the length by one byte
         // This is an empirical hack!
@@ -222,7 +222,8 @@ public class HyperlinkRecord extends Record implements CellValueRecordInterface
         }
         
         // Finally it's the URL
-        field_12_url = in.readUnicodeLEString(field_7_url_len);
+        int strlen = field_7_url_len > (in.remaining()/2) ? (in.remaining()/2) : field_7_url_len;
+        field_12_url = in.readUnicodeLEString(strlen);
     }
     
     /* (non-Javadoc)
@@ -362,4 +363,8 @@ public class HyperlinkRecord extends Record implements CellValueRecordInterface
         this.field_12_url = url + '\u0000';
         this.field_7_url_len = field_12_url.length();
     }
+
+    public int getOptions(){
+        return field_11_url_opts;
+    }
 }

src/java/org/apache/poi/hssf/usermodel/HSSFCell.java

@@ -34,20 +34,7 @@ import java.util.Iterator;
 import org.apache.poi.hssf.model.FormulaParser;
 import org.apache.poi.hssf.model.Sheet;
 import org.apache.poi.hssf.model.Workbook;
-import org.apache.poi.hssf.record.BlankRecord;
+import org.apache.poi.hssf.record.*;
-import org.apache.poi.hssf.record.BoolErrRecord;
-import org.apache.poi.hssf.record.CellValueRecordInterface;
-import org.apache.poi.hssf.record.CommonObjectDataSubRecord;
-import org.apache.poi.hssf.record.ExtendedFormatRecord;
-import org.apache.poi.hssf.record.FormulaRecord;
-import org.apache.poi.hssf.record.LabelSSTRecord;
-import org.apache.poi.hssf.record.NoteRecord;
-import org.apache.poi.hssf.record.NumberRecord;
-import org.apache.poi.hssf.record.ObjRecord;
-import org.apache.poi.hssf.record.Record;
-import org.apache.poi.hssf.record.SubRecord;
-import org.apache.poi.hssf.record.TextObjectRecord;
-import org.apache.poi.hssf.record.UnicodeString;
 import org.apache.poi.hssf.record.aggregates.FormulaRecordAggregate;
 import org.apache.poi.hssf.record.formula.Ptg;
 
@@ -1068,4 +1055,31 @@ public class HSSFCell
         }
         return comment;
    }
+
+    /**
+     * Returns hyperlink associated with this cell
+     *
+     * @return hyperlink associated with this cell or null if not found
+     */
+    public HSSFHyperlink getHyperlink(){
+        for (Iterator it = sheet.getRecords().iterator(); it.hasNext(); ) {
+            Record rec = ( Record ) it.next();
+            if (rec instanceof HyperlinkRecord){
+                HyperlinkRecord link = (HyperlinkRecord)rec;
+                if(link.getColumn() == record.getColumn() && link.getRow() == record.getRow()){
+                    return new HSSFHyperlink(link);
+                }
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Assign a hypelrink to this cell
+     *
+     * @param link hypelrink associated with this cell
+     */
+    public void setHyperlink(HSSFHyperlink link){
+
+    }
 }

src/java/org/apache/poi/hssf/usermodel/HSSFHyperlink.java

@@ -0,0 +1,128 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You 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 org.apache.poi.hssf.usermodel;
+
+import org.apache.poi.hssf.record.EscherAggregate;
+import org.apache.poi.hssf.record.NoteRecord;
+import org.apache.poi.hssf.record.TextObjectRecord;
+import org.apache.poi.hssf.record.HyperlinkRecord;
+import org.apache.poi.ddf.*;
+
+import java.util.Map;
+import java.util.List;
+import java.util.Iterator;
+
+/**
+ * Represents a hyperlink.
+ *
+ * @author Yegor Kozlov
+ */
+public class HSSFHyperlink {
+
+    /**
+     * Link to a existing file or web page
+     */
+    public static final int LINK_URL = 1;
+
+    /**
+     * Link to a place in this document
+     */
+    public static final int LINK_DOCUMENT = 2;
+
+    /**
+     * Link to an E-mail address
+     */
+    public static final int LINK_EMAIL = 3;
+
+    /**
+     * Unknown type
+     */
+    public static final int LINK_UNKNOWN = 4;
+
+    /**
+     * Low-level record object that stores the actual hyperlink data
+     */
+    private HyperlinkRecord record = null;
+
+    protected HSSFHyperlink( HyperlinkRecord record )
+    {
+        this.record = record;
+    }
+
+    /**
+     * Return the row of the cell that contains the hyperlink
+     *
+     * @return the 0-based row of the cell that contains the hyperlink
+     */
+    public int getRow(){
+        return record.getRow();
+    }
+
+    /**
+     * Set the row of the cell that contains the hyperlink
+     *
+     * @param row the 0-based row of the cell that contains the hyperlink
+     */
+    public void setRow(int row){
+        record.setRow(row);
+    }
+
+    /**
+     * Return the column of the cell that contains the hyperlink
+     *
+     * @return the 0-based column of the cell that contains the hyperlink
+     */
+    public short getColumn(){
+        return record.getColumn();
+    }
+
+    /**
+     * Set the column of the cell that contains the hyperlink
+     *
+     * @param col the 0-based column of the cell that contains the hyperlink
+     */
+    public void setColumn(short col){
+        record.setColumn(col);
+    }
+
+    /**
+     * Hypelink address. Depending on the hyperlink type it can be URL, e-mail, etc.
+     *
+     * @return  the address of this hyperlink
+     */
+    public String getAddress(){
+        return record.getUrlString();
+    }
+
+    /**
+     * Return text to display for this hyperlink
+     *
+     * @return  text to display
+     */
+    public String getLabel(){
+        return record.getLabel();
+    }
+
+    /**
+     * Return the type of this hyperlink
+     *
+     * @return the type of this hyperlink
+     */
+    public int getType(){
+        throw new RuntimeException("Not implemented");
+    }
+}

src/testcases/org/apache/poi/hssf/usermodel/TestHSSFCell.java

@@ -305,75 +305,51 @@ extends TestCase {
             in.close();
     }
 
-    public void BROKENtestWithHyperlink() throws Exception {
+    /**
+     * Test reading hyperlinks
+     */
+    public void testWithHyperlink() throws Exception {
         String dir = System.getProperty("HSSF.testdata.path");
         File f = new File(dir, "WithHyperlink.xls");
     	HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(f));
 
-    	assertEquals(3, wb.getNumberOfSheets());
+        HSSFSheet sheet = wb.getSheetAt(0);
+        HSSFCell cell = sheet.getRow(4).getCell((short)0);
+        HSSFHyperlink link = cell.getHyperlink();
+        assertNotNull(link);
 
-    	// Find our hyperlink record, and check they're
+        assertEquals("Foo", link.getLabel());
-    	//  as we'd expect
+        assertEquals("http://poi.apache.org/", link.getAddress());
-    	List records = wb.getWorkbook().getHyperlinks();
+        assertEquals(4, link.getRow());
-    	assertEquals(1, records.size());
+        assertEquals(0, link.getColumn());
-    	
-    	HyperlinkRecord link = (HyperlinkRecord)
-    		records.get(0);
-    	assertNotNull(link);
-    	
-    	// Is in A5
-    	assertEquals("Foo", link.getLabel());
-    	assertEquals("http://poi.apache.org/", link.getUrlString());
-    	assertEquals(4, link.getRow());
-    	assertEquals(0, link.getColumn());
-    	
-    	// Now check at the HSSFCell level
-    	assertEquals(3, wb.getNumberOfSheets());
-    	
-    	HSSFSheet s = wb.getSheetAt(1);
-    	HSSFRow r = s.getRow(4);
-    	assertNotNull(r);
-    	HSSFCell c = r.getCell((short)0);
     }
     
-    public void BROKENtestWithTwoHyperlinks() throws Exception {
+    /**
+     * Test reading hyperlinks
+     */
+    public void testWithTwoHyperlinks() throws Exception {
         String dir = System.getProperty("HSSF.testdata.path");
         File f = new File(dir, "WithTwoHyperLinks.xls");
     	HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(f));
     	
-    	assertEquals(3, wb.getNumberOfSheets());
+        HSSFSheet sheet = wb.getSheetAt(0);
 
-    	// Find our hyperlink record, and check they're
+        HSSFCell cell1 = sheet.getRow(4).getCell((short)0);
-    	//  as we'd expect
+        HSSFHyperlink link1 = cell1.getHyperlink();
-    	List records = wb.getWorkbook().getHyperlinks();
+        assertNotNull(link1);
-    	assertEquals(2, records.size());
+        assertEquals("Foo", link1.getLabel());
+        assertEquals("http://poi.apache.org/", link1.getAddress());
+        assertEquals(4, link1.getRow());
+        assertEquals(0, link1.getColumn());
 
-    	HyperlinkRecord linkA = (HyperlinkRecord)
+        HSSFCell cell2 = sheet.getRow(8).getCell((short)1);
-    		records.get(0);
+        HSSFHyperlink link2 = cell2.getHyperlink();
-    	HyperlinkRecord linkB = (HyperlinkRecord)
+        assertNotNull(link2);
-			records.get(1);
+        assertEquals("Bar", link2.getLabel());
-    	assertNotNull(linkA);
+        assertEquals("http://poi.apache.org/", link2.getAddress());
-    	assertNotNull(linkB);
+        assertEquals(8, link2.getRow());
+        assertEquals(1, link2.getColumn());
 
-    	// Is in A5
-    	assertEquals("Foo", linkA.getLabel());
-    	assertEquals("http://poi.apache.org/", linkA.getUrlString());
-    	assertEquals(4, linkA.getRow());
-    	assertEquals(0, linkA.getColumn());
-    	
-    	// Is in B9
-    	assertEquals("Bar", linkB.getLabel());
-    	assertEquals("http://poi.apache.org/", linkB.getUrlString());
-    	assertEquals(8, linkB.getRow());
-    	assertEquals(1, linkB.getColumn());
-    	
-    	// Now check at the HSSFCell level
-    	assertEquals(3, wb.getNumberOfSheets());
-    	
-    	HSSFSheet s = wb.getSheetAt(1);
-    	HSSFRow r = s.getRow(4);
-    	assertNotNull(r);
-    	HSSFCell c = r.getCell((short)0);
     }
     
     /*tests the toString() method of HSSFCell*/