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/*
* Copyright (C) 2009 The Android Open Source Project
*
* 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 android.syncml.pim.vcard;
import android.syncml.pim.VBuilder;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* Class which tries to detects the source of the vCard from its properties.
* Currently this implementation is very premature.
* @hide
*/
public class VCardSourceDetector implements VBuilder {
// Should only be used in package.
static final int TYPE_UNKNOWN = 0;
static final int TYPE_APPLE = 1;
static final int TYPE_JAPANESE_MOBILE_PHONE = 2; // Used in Japanese mobile phones.
static final int TYPE_FOMA = 3; // Used in some Japanese FOMA mobile phones.
static final int TYPE_WINDOWS_MOBILE_JP = 4;
// TODO: Excel, etc.
private static Set<String> APPLE_SIGNS = new HashSet<String>(Arrays.asList(
"X-PHONETIC-FIRST-NAME", "X-PHONETIC-MIDDLE-NAME", "X-PHONETIC-LAST-NAME",
"X-ABADR", "X-ABUID"));
private static Set<String> JAPANESE_MOBILE_PHONE_SIGNS = new HashSet<String>(Arrays.asList(
"X-GNO", "X-GN", "X-REDUCTION"));
private static Set<String> WINDOWS_MOBILE_PHONE_SIGNS = new HashSet<String>(Arrays.asList(
"X-MICROSOFT-ASST_TEL", "X-MICROSOFT-ASSISTANT", "X-MICROSOFT-OFFICELOC"));
// Note: these signes appears before the signs of the other type (e.g. "X-GN").
// In other words, Japanese FOMA mobile phones are detected as FOMA, not JAPANESE_MOBILE_PHONES.
private static Set<String> FOMA_SIGNS = new HashSet<String>(Arrays.asList(
"X-SD-VERN", "X-SD-FORMAT_VER", "X-SD-CATEGORIES", "X-SD-CLASS", "X-SD-DCREATED",
"X-SD-DESCRIPTION"));
private static String TYPE_FOMA_CHARSET_SIGN = "X-SD-CHAR_CODE";
private int mType = TYPE_UNKNOWN;
// Some mobile phones (like FOMA) tells us the charset of the data.
private boolean mNeedParseSpecifiedCharset;
private String mSpecifiedCharset;
public void start() {
}
public void end() {
}
public void startRecord(String type) {
}
public void startProperty() {
mNeedParseSpecifiedCharset = false;
}
public void endProperty() {
}
public void endRecord() {
}
public void propertyGroup(String group) {
}
public void propertyName(String name) {
if (name.equalsIgnoreCase(TYPE_FOMA_CHARSET_SIGN)) {
mType = TYPE_FOMA;
mNeedParseSpecifiedCharset = true;
return;
}
if (mType != TYPE_UNKNOWN) {
return;
}
if (WINDOWS_MOBILE_PHONE_SIGNS.contains(name)) {
mType = TYPE_WINDOWS_MOBILE_JP;
} else if (FOMA_SIGNS.contains(name)) {
mType = TYPE_FOMA;
} else if (JAPANESE_MOBILE_PHONE_SIGNS.contains(name)) {
mType = TYPE_JAPANESE_MOBILE_PHONE;
} else if (APPLE_SIGNS.contains(name)) {
mType = TYPE_APPLE;
}
}
public void propertyParamType(String type) {
}
public void propertyParamValue(String value) {
}
public void propertyValues(List<String> values) {
if (mNeedParseSpecifiedCharset && values.size() > 0) {
mSpecifiedCharset = values.get(0);
}
}
int getType() {
return mType;
}
/**
* Return charset String guessed from the source's properties.
* This method must be called after parsing target file(s).
* @return Charset String. Null is returned if guessing the source fails.
*/
public String getEstimatedCharset() {
if (mSpecifiedCharset != null) {
return mSpecifiedCharset;
}
switch (mType) {
case TYPE_WINDOWS_MOBILE_JP:
case TYPE_FOMA:
case TYPE_JAPANESE_MOBILE_PHONE:
return "SHIFT_JIS";
case TYPE_APPLE:
return "UTF-8";
default:
return null;
}
}
}
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