Android example source code file (ExportTestResolver.java)

This example Android source code file (ExportTestResolver.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, arraylist, contactentry, content, contentvalues, contentvaluesbuilder, cursor, entity, entityiterator, exporttestprovider, exporttestresolver, mockentityiterator, net, network, override, string, test, testcase, unsupportedoperationexception, util

The ExportTestResolver.java Android example source code

/*
 * 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.pim.vcard;

import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Entity;
import android.content.EntityIterator;
import android.database.Cursor;
import android.net.Uri;
import android.provider.ContactsContract.Contacts;
import android.provider.ContactsContract.Data;
import android.provider.ContactsContract.RawContacts;
import android.test.mock.MockContentResolver;
import android.test.mock.MockCursor;

import junit.framework.TestCase;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/* package */ public class ExportTestResolver extends MockContentResolver {
    ExportTestProvider mProvider;
    public ExportTestResolver(TestCase testCase) {
        mProvider = new ExportTestProvider(testCase);
        addProvider(VCardComposer.VCARD_TEST_AUTHORITY, mProvider);
        addProvider(RawContacts.CONTENT_URI.getAuthority(), mProvider);
    }

    public ContactEntry addInputContactEntry() {
        return mProvider.buildInputEntry();
    }
}

/* package */ class MockEntityIterator implements EntityIterator {
    List<Entity> mEntityList;
    Iterator<Entity> mIterator;

    public MockEntityIterator(List<ContentValues> contentValuesList) {
        mEntityList = new ArrayList<Entity>();
        Entity entity = new Entity(new ContentValues());
        for (ContentValues contentValues : contentValuesList) {
                entity.addSubValue(Data.CONTENT_URI, contentValues);
        }
        mEntityList.add(entity);
        mIterator = mEntityList.iterator();
    }

    public boolean hasNext() {
        return mIterator.hasNext();
    }

    public Entity next() {
        return mIterator.next();
    }

    public void remove() {
        throw new UnsupportedOperationException("remove not supported");
    }

    public void reset() {
        mIterator = mEntityList.iterator();
    }

    public void close() {
    }
}

/**
 * Represents one contact, which should contain multiple ContentValues like
 * StructuredName, Email, etc.
 */
/* package */ class ContactEntry {
    private final List<ContentValues> mContentValuesList = new ArrayList();

    public ContentValuesBuilder addContentValues(String mimeType) {
        ContentValues contentValues = new ContentValues();
        contentValues.put(Data.MIMETYPE, mimeType);
        mContentValuesList.add(contentValues);
        return new ContentValuesBuilder(contentValues);
    }

    public List<ContentValues> getList() {
        return mContentValuesList;
    }
}

/* package */ class ExportTestProvider extends MockContentProvider {
    final private TestCase mTestCase;
    final private ArrayList<ContactEntry> mContactEntryList = new ArrayList();

    public ExportTestProvider(TestCase testCase) {
        mTestCase = testCase;
    }

    public ContactEntry buildInputEntry() {
        ContactEntry contactEntry = new ContactEntry();
        mContactEntryList.add(contactEntry);
        return contactEntry;
    }

    /**
     * <p>
     * An old method which had existed but was removed from ContentResolver.
     * </p>
     * <p>
     * We still keep using this method since we don't have a propeer way to know
     * which value in the ContentValue corresponds to the entry in Contacts database.
     * </p>
     * <p>
     * Detail:
     * There's an easy way to know which index "family name" corresponds to, via
     * {@link android.provider.ContactsContract}.
     * FAMILY_NAME equals DATA3, so the corresponding index
     * for "family name" should be 2 (note that index is 0-origin).
     * However, we cannot know what the index 2 corresponds to; it may be "family name",
     * "label" for now, but may be the other some column in the future. We don't have
     * convenient way to know the original data structure.
     * </p>
     */
    public EntityIterator queryEntities(Uri uri,
            String selection, String[] selectionArgs, String sortOrder) {
        mTestCase.assertTrue(uri != null);
        mTestCase.assertTrue(ContentResolver.SCHEME_CONTENT.equals(uri.getScheme()));
        final String authority = uri.getAuthority();
        mTestCase.assertTrue(RawContacts.CONTENT_URI.getAuthority().equals(authority));
        mTestCase.assertTrue((Data.CONTACT_ID + "=?").equals(selection));
        mTestCase.assertEquals(1, selectionArgs.length);
        final int id = Integer.parseInt(selectionArgs[0]);
        mTestCase.assertTrue(id >= 0 && id < mContactEntryList.size());

        return new MockEntityIterator(mContactEntryList.get(id).getList());
    }

    @Override
    public Cursor query(Uri uri,String[] projection,
            String selection, String[] selectionArgs, String sortOrder) {
        mTestCase.assertTrue(VCardComposer.CONTACTS_TEST_CONTENT_URI.equals(uri));
        // In this test, following arguments are not supported.
        mTestCase.assertNull(selection);
        mTestCase.assertNull(selectionArgs);
        mTestCase.assertNull(sortOrder);

        return new MockCursor() {
            int mCurrentPosition = -1;

            @Override
            public int getCount() {
                return mContactEntryList.size();
            }

            @Override
            public boolean moveToFirst() {
                mCurrentPosition = 0;
                return true;
            }

            @Override
            public boolean moveToNext() {
                if (mCurrentPosition < mContactEntryList.size()) {
                    mCurrentPosition++;
                    return true;
                } else {
                    return false;
                }
            }

            @Override
            public boolean isBeforeFirst() {
                return mCurrentPosition < 0;
            }

            @Override
            public boolean isAfterLast() {
                return mCurrentPosition >= mContactEntryList.size();
            }

            @Override
            public int getColumnIndex(String columnName) {
                mTestCase.assertEquals(Contacts._ID, columnName);
                return 0;
            }

            @Override
            public int getInt(int columnIndex) {
                mTestCase.assertEquals(0, columnIndex);
                mTestCase.assertTrue(mCurrentPosition >= 0
                        && mCurrentPosition < mContactEntryList.size());
                return mCurrentPosition;
            }

            @Override
            public String getString(int columnIndex) {
                return String.valueOf(getInt(columnIndex));
            }

            @Override
            public void close() {
            }
        };
    }
}