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package org.simpleframework.common;
import java.util.HashMap;
import java.util.Map;
import junit.framework.TestCase;
/**
* Test for fast case insensitive mapping for headers that have been taken
* from the request HTTP header or added to the response HTTP header.
*
* @author Niall Gallagher
*/
public class KeyTest extends TestCase {
public class Index implements Name {
private final String value;
public Index(String value) {
this.value = value.toLowerCase();
}
public int hashCode() {
return value.hashCode();
}
public boolean equals(Object key) {
if(key instanceof Name) {
return key.equals(value);
}
if(key instanceof String) {
return key.equals(value);
}
return false;
}
}
public interface Name {
public int hashCode();
public boolean equals(Object value);
}
public class ArrayName implements Name {
private String cache;
private byte[] array;
private int off;
private int size;
private int hash;
public ArrayName(byte[] array) {
this(array, 0, array.length);
}
public ArrayName(byte[] array, int off, int size) {
this.array = array;
this.size = size;
this.off = off;
}
public boolean equals(Object value) {
if(value instanceof String) {
String text = value.toString();
return equals(text);
}
return false;
}
public boolean equals(String value) {
int length = value.length();
if(length != size) {
return false;
}
for(int i = 0; i < size; i++) {
int left = value.charAt(i);
int right = array[off + i];
if(right >= 'A' && right <= 'Z') {
right = (right - 'A') + 'a';
}
if(left != right) {
return false;
}
}
return true;
}
public int hashCode() {
int code = hash;
if(code == 0) {
int pos = off;
for(int i = 0; i < size; i++) {
int next = array[pos++];
if(next >= 'A' && next <= 'Z') {
next = (next - 'A') + 'a';
}
code = 31*code + next;
}
hash = code;
}
return code;
}
}
public class StringName implements Name {
private final String value;
private final String key;
public StringName(String value) {
this.key = value.toLowerCase();
this.value = value;
}
public int hashCode() {
return key.hashCode();
}
public boolean equals(Object value) {
return value.equals(key);
}
}
public class NameTable<T> {
private final Map<Name, T> map;
public NameTable() {
this.map = new HashMap<Name, T>();
}
public void put(Name key, T value) {
map.put(key, value);
}
public void put(String text, T value) {
Name key = new StringName(text);
map.put(key, value);
}
public T get(String key) {
Index index = new Index(key);
return map.get(index);
}
public T remove(String key) {
Index index = new Index(key);
return map.remove(index);
}
}
public void testName() {
Name contentLength = new ArrayName("Content-Length".getBytes());
Name contentType = new ArrayName("Content-Type".getBytes());
Name transferEncoding = new ArrayName("Transfer-Encoding".getBytes());
Name userAgent = new ArrayName("User-Agent".getBytes());
NameTable<String> map = new NameTable<String>();
assertEquals(contentLength.hashCode(), "Content-Length".toLowerCase().hashCode());
assertEquals(contentType.hashCode(), "Content-Type".toLowerCase().hashCode());
assertEquals(transferEncoding.hashCode(), "Transfer-Encoding".toLowerCase().hashCode());
assertEquals(userAgent.hashCode(), "User-Agent".toLowerCase().hashCode());
map.put(contentLength, "1024");
map.put(contentType, "text/html");
map.put(transferEncoding, "chunked");
map.put(userAgent, "Mozilla/4.0");
map.put("Date", "18/11/1977");
map.put("Accept", "text/plain, text/html, image/gif");
assertEquals(map.get("Content-Length"), "1024");
assertEquals(map.get("CONTENT-LENGTH"), "1024");
assertEquals(map.get("content-length"), "1024");
assertEquals(map.get("Content-length"), "1024");
assertEquals(map.get("Content-Type"), "text/html");
assertEquals(map.get("Transfer-Encoding"), "chunked");
assertEquals(map.get("USER-AGENT"), "Mozilla/4.0");
assertEquals(map.get("Accept"), "text/plain, text/html, image/gif");
assertEquals(map.get("ACCEPT"), "text/plain, text/html, image/gif");
assertEquals(map.get("accept"), "text/plain, text/html, image/gif");
assertEquals(map.get("DATE"), "18/11/1977");
assertEquals(map.get("Date"), "18/11/1977");
assertEquals(map.get("date"), "18/11/1977");
}
}
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