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/*
* Copyright (C) 2011 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.client.android.encode;
import android.telephony.PhoneNumberUtils;
import java.util.regex.Pattern;
/**
* Encodes contact information according to the vCard format.
*
* @author Sean Owen
*/
final class VCardContactEncoder extends ContactEncoder {
private static final Pattern RESERVED_VCARD_CHARS = Pattern.compile("([\\\\,;])");
private static final Pattern NEWLINE = Pattern.compile("\\n");
private static final Formatter VCARD_FIELD_FORMATTER = new Formatter() {
@Override
public String format(String source) {
return NEWLINE.matcher(RESERVED_VCARD_CHARS.matcher(source).replaceAll("\\\\$1")).replaceAll("");
}
};
private static final char TERMINATOR = '\n';
@Override
public String[] encode(Iterable<String> names,
String organization,
Iterable<String> addresses,
Iterable<String> phones,
Iterable<String> emails,
String url,
String note) {
StringBuilder newContents = new StringBuilder(100);
StringBuilder newDisplayContents = new StringBuilder(100);
newContents.append("BEGIN:VCARD").append(TERMINATOR);
appendUpToUnique(newContents, newDisplayContents, "N", names, 1, null);
append(newContents, newDisplayContents, "ORG", organization);
appendUpToUnique(newContents, newDisplayContents, "ADR", addresses, 1, null);
appendUpToUnique(newContents, newDisplayContents, "TEL", phones, Integer.MAX_VALUE, new Formatter() {
@Override
public String format(String source) {
return PhoneNumberUtils.formatNumber(source);
}
});
appendUpToUnique(newContents, newDisplayContents, "EMAIL", emails, Integer.MAX_VALUE, null);
append(newContents, newDisplayContents, "URL", url);
append(newContents, newDisplayContents, "NOTE", note);
newContents.append("END:VCARD").append(TERMINATOR);
return new String[] { newContents.toString(), newDisplayContents.toString() };
}
private static void append(StringBuilder newContents,
StringBuilder newDisplayContents,
String prefix,
String value) {
doAppend(newContents, newDisplayContents, prefix, value, VCARD_FIELD_FORMATTER, TERMINATOR);
}
private static void appendUpToUnique(StringBuilder newContents,
StringBuilder newDisplayContents,
String prefix,
Iterable<String> values,
int max,
Formatter formatter) {
doAppendUpToUnique(newContents,
newDisplayContents,
prefix,
values,
max,
formatter,
VCARD_FIELD_FORMATTER,
TERMINATOR);
}
}
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