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/*
* Copyright 2007 ZXing authors
*
* 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.
*/
package com.google.zxing;
import java.util.Enumeration;
import java.util.Hashtable;
/**
* <p>Encapsulates the result of decoding a barcode within an image.</p>
*
* @author Sean Owen
*/
public final class Result {
private final String text;
private final byte[] rawBytes;
private ResultPoint[] resultPoints;
private final BarcodeFormat format;
private Hashtable resultMetadata;
private final long timestamp;
public Result(String text,
byte[] rawBytes,
ResultPoint[] resultPoints,
BarcodeFormat format) {
this(text, rawBytes, resultPoints, format, System.currentTimeMillis());
}
public Result(String text,
byte[] rawBytes,
ResultPoint[] resultPoints,
BarcodeFormat format,
long timestamp) {
if (text == null && rawBytes == null) {
throw new IllegalArgumentException("Text and bytes are null");
}
this.text = text;
this.rawBytes = rawBytes;
this.resultPoints = resultPoints;
this.format = format;
this.resultMetadata = null;
this.timestamp = timestamp;
}
/**
* @return raw text encoded by the barcode, if applicable, otherwise <code>null</code>
*/
public String getText() {
return text;
}
/**
* @return raw bytes encoded by the barcode, if applicable, otherwise <code>null</code>
*/
public byte[] getRawBytes() {
return rawBytes;
}
/**
* @return points related to the barcode in the image. These are typically points
* identifying finder patterns or the corners of the barcode. The exact meaning is
* specific to the type of barcode that was decoded.
*/
public ResultPoint[] getResultPoints() {
return resultPoints;
}
/**
* @return {@link BarcodeFormat} representing the format of the barcode that was decoded
*/
public BarcodeFormat getBarcodeFormat() {
return format;
}
/**
* @return {@link Hashtable} mapping {@link ResultMetadataType} keys to values. May be
* <code>null</code>. This contains optional metadata about what was detected about the barcode,
* like orientation.
*/
public Hashtable getResultMetadata() {
return resultMetadata;
}
public void putMetadata(ResultMetadataType type, Object value) {
if (resultMetadata == null) {
resultMetadata = new Hashtable(3);
}
resultMetadata.put(type, value);
}
public void putAllMetadata(Hashtable metadata) {
if (metadata != null) {
if (resultMetadata == null) {
resultMetadata = metadata;
} else {
Enumeration e = metadata.keys();
while (e.hasMoreElements()) {
ResultMetadataType key = (ResultMetadataType) e.nextElement();
Object value = metadata.get(key);
resultMetadata.put(key, value);
}
}
}
}
public void addResultPoints(ResultPoint[] newPoints) {
if (resultPoints == null) {
resultPoints = newPoints;
} else if (newPoints != null && newPoints.length > 0) {
ResultPoint[] allPoints = new ResultPoint[resultPoints.length + newPoints.length];
System.arraycopy(resultPoints, 0, allPoints, 0, resultPoints.length);
System.arraycopy(newPoints, 0, allPoints, resultPoints.length, newPoints.length);
resultPoints = allPoints;
}
}
public long getTimestamp() {
return timestamp;
}
public String toString() {
if (text == null) {
return "[" + rawBytes.length + " bytes]";
} else {
return text;
}
}
}
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