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/*
* Copyright (C) 2015 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 com.android.voicemail.impl.mail.store.imap;
/** Class represents an IMAP response. */
public class ImapResponse extends ImapList {
private final String tag;
private final boolean isContinuationRequest;
/* package */ ImapResponse(String tag, boolean isContinuationRequest) {
this.tag = tag;
this.isContinuationRequest = isContinuationRequest;
}
/* package */ static boolean isStatusResponse(String symbol) {
return ImapConstants.OK.equalsIgnoreCase(symbol)
|| ImapConstants.NO.equalsIgnoreCase(symbol)
|| ImapConstants.BAD.equalsIgnoreCase(symbol)
|| ImapConstants.PREAUTH.equalsIgnoreCase(symbol)
|| ImapConstants.BYE.equalsIgnoreCase(symbol);
}
/** @return whether it's a tagged response. */
public boolean isTagged() {
return tag != null;
}
/** @return whether it's a continuation request. */
public boolean isContinuationRequest() {
return isContinuationRequest;
}
public boolean isStatusResponse() {
return isStatusResponse(getStringOrEmpty(0).getString());
}
/** @return whether it's an OK response. */
public boolean isOk() {
return is(0, ImapConstants.OK);
}
/** @return whether it's an BAD response. */
public boolean isBad() {
return is(0, ImapConstants.BAD);
}
/** @return whether it's an NO response. */
public boolean isNo() {
return is(0, ImapConstants.NO);
}
/**
* @return whether it's an {@code responseType} data response. (i.e. not tagged).
* @param index where {@code responseType} should appear. e.g. 1 for "FETCH"
* @param responseType e.g. "FETCH"
*/
public final boolean isDataResponse(int index, String responseType) {
return !isTagged() && getStringOrEmpty(index).is(responseType);
}
/**
* @return Response code (RFC 3501 7.1) if it's a status response.
* <p>e.g. "ALERT" for "* OK [ALERT] System shutdown in 10 minutes"
*/
public ImapString getResponseCodeOrEmpty() {
if (!isStatusResponse()) {
return ImapString.EMPTY; // Not a status response.
}
return getListOrEmpty(1).getStringOrEmpty(0);
}
/**
* @return Alert message it it has ALERT response code.
* <p>e.g. "System shutdown in 10 minutes" for "* OK [ALERT] System shutdown in 10 minutes"
*/
public ImapString getAlertTextOrEmpty() {
if (!getResponseCodeOrEmpty().is(ImapConstants.ALERT)) {
return ImapString.EMPTY; // Not an ALERT
}
// The 3rd element contains all the rest of line.
return getStringOrEmpty(2);
}
/** @return Response text in a status response. */
public ImapString getStatusResponseTextOrEmpty() {
if (!isStatusResponse()) {
return ImapString.EMPTY;
}
return getStringOrEmpty(getElementOrNone(1).isList() ? 2 : 1);
}
public ImapString getStatusOrEmpty() {
if (!isStatusResponse()) {
return ImapString.EMPTY;
}
return getStringOrEmpty(0);
}
@Override
public String toString() {
String tag = this.tag;
if (isContinuationRequest()) {
tag = "+";
}
return "#" + tag + "# " + super.toString();
}
@Override
public boolean equalsForTest(ImapElement that) {
if (!super.equalsForTest(that)) {
return false;
}
final ImapResponse thatResponse = (ImapResponse) that;
if (tag == null) {
if (thatResponse.tag != null) {
return false;
}
} else {
if (!tag.equals(thatResponse.tag)) {
return false;
}
}
if (isContinuationRequest != thatResponse.isContinuationRequest) {
return false;
}
return true;
}
}
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