Example usage for org.apache.commons.collections.map DefaultedMap DefaultedMap

Introduction

In this page you can find the example usage for org.apache.commons.collections.map DefaultedMap DefaultedMap.

Prototype

public DefaultedMap(Object defaultValue) 

Source Link

Document

Constructs a new empty DefaultedMap that decorates a HashMap.

Usage

From source file:jinex.JarMetadataLoader.java

public void load(Transaction tx) throws Exception {

    String jarRow = "jar:" + jarInfo.getHash();

    if (tx.get(jarRow, new Column("count", "classes")) == null) {
        // have never seen this jar before
        tx.set(jarRow, new Column("count", "classes"), jarInfo.getClasses().size() + "");

        Map<String, Integer> pkgRefCounts = new DefaultedMap(new Integer(0));

        for (ClassMetadata classInfo : jarInfo.getClasses()) {
            String classRow = "class:" + classInfo.getName();

            if (tx.get(classRow, new Column(classInfo.getHash(), "deps")) == null) {
                // have never seen this class before, so add its dependencies
                tx.set(classRow, new Column(classInfo.getHash(), "deps"),
                        classInfo.getClassDependencies().size() + "");

                Set<String> deps = new HashSet<String>(classInfo.getClassDependencies());

                //remove existing deps
                RowIterator depIter = tx
                        .get(new ScannerConfiguration().setRange(Range.exact(classRow, "deps")));
                if (depIter.hasNext()) {
                    ColumnIterator colIter = depIter.next().getValue();
                    while (colIter.hasNext()) {
                        String existingDep = colIter.next().getKey().getQualifier().toString();
                        deps.remove(existingDep);
                    }/*from  w w w  .j  a  va2s .com*/
                }

                String packageName = getParent(classInfo.getName());

                //new dependencies for this class
                for (String dep : deps) {
                    tx.set(classRow, new Column("deps", dep), "");
                    if (packageName != null) {
                        String pkgRefCountRow = "prc:" + packageName + ":" + dep;
                        int pkgRefCount = pkgRefCounts.get(pkgRefCountRow);
                        pkgRefCounts.put(pkgRefCountRow, pkgRefCount + 1);
                    }
                }

            }

        }

        for (Entry<String, Integer> entry : pkgRefCounts.entrySet()) {
            String pkgRefCountRow = entry.getKey();
            ByteSequence currCountBS = tx.get(pkgRefCountRow, new Column("prcount", "update"));
            int pkgRefCount = entry.getValue();
            if (currCountBS != null)
                pkgRefCount += Integer.parseInt(currCountBS.toString());
            tx.set(pkgRefCountRow, new Column("prcount", "update"), pkgRefCount + "");
        }
    }

    // is this jar name known?
    if (tx.get(jarRow, new Column("names", jarInfo.getName())) == null) {
        tx.set(jarRow, new Column("names", jarInfo.getName()), "");
    }

}

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