1 files changed, 115 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/cos/COSNumber.java b/src/main/java/org/pdfbox/cos/COSNumber.java
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+++ b/src/main/java/org/pdfbox/cos/COSNumber.java
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+/**
+ * Copyright (c) 2003, www.pdfbox.org
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of pdfbox; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://www.pdfbox.org
+ *
+ */
+package org.pdfbox.cos;
+
+import java.io.IOException;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * This class represents an abstract number in a PDF document.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.9 $
+ */
+public abstract class COSNumber extends COSBase
+{
+    /**
+     * ZERO.
+    */
+    public static final COSInteger ZERO = new COSInteger( 0 );
+    /**
+     * ONE.
+    */
+    public static final COSInteger ONE = new COSInteger( 1 );
+    private static final Map COMMON_NUMBERS = new HashMap();
+
+    static
+    {
+        COMMON_NUMBERS.put( "0", ZERO );
+        COMMON_NUMBERS.put( "1", ONE );
+    }
+
+    /**
+     * This will get the float value of this number.
+     *
+     * @return The float value of this object.
+     */
+    public abstract float floatValue();
+
+    /**
+     * This will get the double value of this number.
+     *
+     * @return The double value of this number.
+     */
+    public abstract double doubleValue();
+
+    /**
+     * This will get the integer value of this number.
+     *
+     * @return The integer value of this number.
+     */
+    public abstract int intValue();
+
+    /**
+     * This will get the long value of this number.
+     *
+     * @return The long value of this number.
+     */
+    public abstract long longValue();
+
+    /**
+     * This factory method will get the appropriate number object.
+     *
+     * @param number The string representation of the number.
+     *
+     * @return A number object, either float or int.
+     *
+     * @throws IOException If the string is not a number.
+     */
+    public static COSNumber get( String number ) throws IOException
+    {
+        COSNumber result = (COSNumber)COMMON_NUMBERS.get( number );
+        if( result == null )
+        {
+            if (number.indexOf('.') >= 0)
+            {
+                result = new COSFloat( number );
+            }
+            else
+            {
+                result = new COSInteger( number );
+            }
+        }
+        return result;
+    }
+}
+\ No newline at end of file