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Commit 56c0ccec authored by Meng Wang's avatar Meng Wang
Browse files

Do not use hidden API XmlUtils.

Make a local copy instead.

Bug: 137202333
Test: make
Merged-In: Ibcf7b23a8b6628aa482b34f867db57e4cb0dbb8e
Change-Id: Ibcf7b23a8b6628aa482b34f867db57e4cb0dbb8e
parent 01e54d44
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Original line number Diff line number Diff line
@@ -1638,6 +1638,5 @@ filegroup {
        "core/java/com/android/internal/util/State.java",
        "core/java/com/android/internal/util/StateMachine.java",
        "core/java/com/android/internal/util/UserIcons.java",
        "core/java/com/android/internal/util/XmlUtils.java",
    ],
}
+1 −1
Original line number Diff line number Diff line
@@ -23,7 +23,7 @@ import android.telephony.Rlog;
import android.util.SparseIntArray;

import com.android.internal.telephony.cdma.sms.UserData;
import com.android.internal.util.XmlUtils;
import com.android.internal.telephony.util.XmlUtils;

import dalvik.annotation.compat.UnsupportedAppUsage;

+75 −0
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/*
 * Copyright (C) 2019 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.internal.telephony.util;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import java.io.IOException;

/** Utility methods for XML operations. */
public final class XmlUtils {
    private XmlUtils() {}

    /**
     * Moves parser to the first start tag, and expects the tag name being {@code firstElementName}.
     */
    public static void beginDocument(XmlPullParser parser, String firstElementName)
            throws XmlPullParserException, IOException {
        int type;
        while ((type = parser.next()) != parser.START_TAG && type != parser.END_DOCUMENT) {
            // no-op
        }

        if (type != parser.START_TAG) {
            throw new XmlPullParserException("No start tag found");
        }

        if (!parser.getName().equals(firstElementName)) {
            throw new XmlPullParserException("Unexpected start tag: found " + parser.getName()
                    + ", expected " + firstElementName);
        }
    }

    /**
     * Moves parser to the next start tag.
     */
    public static void nextElement(XmlPullParser parser)
            throws XmlPullParserException, IOException {
        int type;
        while ((type = parser.next()) != parser.START_TAG && type != parser.END_DOCUMENT) {
            // no-op
        }
    }

    /**
     * Moves parser to the next start tag within the {@code outerDepth}.
     */
    public static boolean nextElementWithin(XmlPullParser parser, int outerDepth)
            throws IOException, XmlPullParserException {
        for (;;) {
            int type = parser.next();
            if (type == XmlPullParser.END_DOCUMENT
                    || (type == XmlPullParser.END_TAG && parser.getDepth() == outerDepth)) {
                return false;
            }
            if (type == XmlPullParser.START_TAG && parser.getDepth() == outerDepth + 1) {
                return true;
            }
        }
    }
}