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BaseTestRangeFilter.javaAPI DocApache Lucene 1.93651Mon Feb 20 09:19:32 GMT 2006org.apache.lucene.search

BaseTestRangeFilter

public class BaseTestRangeFilter extends junit.framework.TestCase
Copyright 2004 The Apache Software Foundation 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.

Fields Summary
public static final boolean
F
public static final boolean
T
RAMDirectory
index
Random
rand
int
maxR
int
minR
int
minId
int
maxId
static final int
intLength
Constructors Summary
public BaseTestRangeFilter(String name)

	super(name);
        build();
    
public BaseTestRangeFilter()

        build();
    
Methods Summary
private voidbuild()

        try {
            
            /* build an index */
            IndexWriter writer = new IndexWriter(index,
                                                 new SimpleAnalyzer(), T);

            for (int d = minId; d <= maxId; d++) {
                Document doc = new Document();
                doc.add(new Field("id",pad(d), Field.Store.YES, Field.Index.UN_TOKENIZED));
                int r= rand.nextInt();
                if (maxR < r) {
                    maxR = r;
                }
                if (r < minR) {
                    minR = r;
                }
                doc.add(new Field("rand",pad(r), Field.Store.YES, Field.Index.UN_TOKENIZED));
                doc.add(new Field("body","body", Field.Store.YES, Field.Index.UN_TOKENIZED));
                writer.addDocument(doc);
            }
            
            writer.optimize();
            writer.close();

        } catch (Exception e) {
            throw new RuntimeException("can't build index", e);
        }

    
public static java.lang.Stringpad(int n)
a simple padding function that should work with any int

    
                   
         
        StringBuffer b = new StringBuffer(40);
        String p = "0";
        if (n < 0) {
            p = "-";
            n = Integer.MAX_VALUE + n + 1;
        }
        b.append(p);
        String s = Integer.toString(n);
        for (int i = s.length(); i <= intLength; i++) {
            b.append("0");
        }
        b.append(s);
        
        return b.toString();
    
public voidtestPad()


        int[] tests = new int[] {
            -9999999, -99560, -100, -3, -1, 0, 3, 9, 10, 1000, 999999999
        };
        for (int i = 0; i < tests.length - 1; i++) {
            int a = tests[i];
            int b = tests[i+1];
            String aa = pad(a);
            String bb = pad(b);
            String label = a + ":" + aa + " vs " + b + ":" + bb;
            assertEquals("length of " + label, aa.length(), bb.length());
            assertTrue("compare less than " + label, aa.compareTo(bb) < 0);
        }