This commit was manufactured by cvs2svn to create branch 'VamJalview'.

[jalview.git] / src / org / biojava / dasobert / dasregistry / DasCoordSysComparator.java

diff --git a/src/org/biojava/dasobert/dasregistry/DasCoordSysComparator.java b/src/org/biojava/dasobert/dasregistry/DasCoordSysComparator.java
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+/*
+ *                    BioJava development code
+ *
+ * This code may be freely distributed and modified under the
+ * terms of the GNU Lesser General Public Licence.  This should
+ * be distributed with the code.  If you do not have a copy,
+ * see:
+ *
+ *      http://www.gnu.org/copyleft/lesser.html
+ *
+ * Copyright for this code is held jointly by the individual
+ * authors.  These should be listed in @author doc comments.
+ *
+ * For more information on the BioJava project and its aims,
+ * or to join the biojava-l mailing list, visit the home page
+ * at:
+ *
+ *      http://www.biojava.org/
+ *
+ * Created on 15.04.2004
+ * @author Andreas Prlic
+ *
+ */
+
+
+package org.biojava.dasobert.dasregistry ;
+
+import java.util.Comparator ;
+import java.util.Map ;
+import java.util.HashMap ;
+
+import org.biojava.dasobert.dasregistry.DasCoordinateSystem;
+
+/** a comparator to sort DasSources 
+ * @author Andreas Prlic 
+ */
+
+
+public abstract class DasCoordSysComparator
+    implements Comparator
+{ 
+
+    private final String name ;
+    private static final Map COMPS_BY_NAME;
+
+
+    public DasCoordSysComparator(String str) {
+       //System.out.println("new dasSourceComparator " + str);
+       name = str ;
+    }
+   
+    public static final Comparator BY_NAME = new DasCoordSysComparator("name") {
+        protected Comparable getField(DasCoordinateSystem ds) {
+            return ds.getName();
+        }
+    };    
+
+    public static final Comparator BY_ID = new DasCoordSysComparator("id") {
+        protected Comparable getField(DasCoordinateSystem ds) {
+            return ds.getUniqueId();
+        }
+    };    
+    public static final Comparator BY_CATEGORY = new DasCoordSysComparator("category") {
+        protected Comparable getField(DasCoordinateSystem ds) {
+            return ds.getCategory();
+        }
+    };
+    public static final Comparator BY_ORGANISM = new DasCoordSysComparator("organism") {
+        protected Comparable getField(DasCoordinateSystem ds) {
+            return ds.getOrganismName();
+        }
+    };
+    public static final Comparator BY_TAXID = new DasCoordSysComparator("taxid") {
+        protected Comparable getField(DasCoordinateSystem ds) {
+            return ds.getNCBITaxId()+"";
+        }
+    };
+   
+    
+
+    static {
+        COMPS_BY_NAME = new HashMap();
+        COMPS_BY_NAME.put(BY_ID.toString(),           BY_ID);
+       COMPS_BY_NAME.put(BY_NAME.toString(),         BY_NAME);
+        COMPS_BY_NAME.put(BY_CATEGORY.toString(),     BY_CATEGORY);
+        COMPS_BY_NAME.put(BY_ORGANISM.toString(),     BY_ORGANISM);
+        COMPS_BY_NAME.put(BY_TAXID.toString(),        BY_TAXID);
+    }
+
+   
+
+    public static Comparator fromString(String name) {
+        if (COMPS_BY_NAME.containsKey(name)) {
+            return (Comparator) COMPS_BY_NAME.get(name);
+        } else {
+            throw new IllegalArgumentException("Can't compare by key " + name);
+        }
+    }
+
+    protected abstract Comparable getField(DasCoordinateSystem ds);
+
+    /** compare two DasCoordSys objects */
+    public int compare( Object a, Object b) {
+        DasCoordinateSystem x = (DasCoordinateSystem) a ;
+        DasCoordinateSystem y = (DasCoordinateSystem) b ;
+        return getField(x).compareTo(getField(y));
+    }
+
+    public String toString() {
+        return name;
+    }
+
+
+}
+
+