org.projecthdata.ehr.viewer.fragments.PatientFragment.java Source code

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Here is the source code for org.projecthdata.ehr.viewer.fragments.PatientFragment.java

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/*
 * Copyright 2011 The MITRE Corporation
 *
 * 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 org.projecthdata.ehr.viewer.fragments;

import java.io.ByteArrayInputStream;

import org.projecthdata.ehr.viewer.R;
import org.projecthdata.ehr.viewer.util.Constants;
import org.projecthdata.ehr.viewer.util.Constants.SyncState;
import org.projecthdata.hhub.HHubApplication;
import org.projecthdata.social.api.HData;
import org.springframework.social.connect.Connection;
import org.springframework.social.connect.ConnectionRepository;
import org.springframework.web.client.RestClientException;

import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.ViewSwitcher;

public class PatientFragment extends Fragment implements OnSharedPreferenceChangeListener {

    private SharedPreferences prefs = null;
    private ViewSwitcher switcher = null;
    protected ConnectionRepository connectionRepository = null;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.patient, null);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        this.prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
        prefs.registerOnSharedPreferenceChangeListener(this);
        this.switcher = (ViewSwitcher) (getActivity().findViewById(R.id.patient_view_switcher));

        // initialize the utilities for communicating with the hData server
        this.connectionRepository = ((HHubApplication) getActivity().getApplicationContext())
                .getConnectionRepository();

    }

    @Override
    public void onStart() {
        super.onStart();
        updateSwitcher();
        bindData();
    }

    @Override
    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
        if (key.equals(Constants.PREF_PATIENT_INFO_SYNC_STATE)) {
            updateSwitcher();
        } else if (key.contains("patient")) {
            bindData();
        }

    }

    private void updateSwitcher() {
        boolean doneSyncing = SyncState.READY.toString()
                .equals(prefs.getString(Constants.PREF_PATIENT_INFO_SYNC_STATE, ""));
        // if we are done syncing, show child 1
        int index = (doneSyncing) ? 1 : 0;
        switcher.setDisplayedChild(index);
    }

    private void bindData() {
        String lastName = prefs.getString(Constants.PREF_PATIENT_NAME_LASTNAME, "");
        String givenName = prefs.getString(Constants.PREF_PATIENT_NAME_GIVEN, "");
        String suffix = prefs.getString(Constants.PREF_PATIENT_NAME_SUFFIX, null);
        String name = lastName + ", " + givenName;
        if (suffix != null) {
            name += " " + suffix;
        }

        setTextViewText(R.id.patient_name, name);
        setTextViewText(R.id.patient_id, prefs.getString(Constants.PREF_PATIENT_ID, ""));
        new ImageTask().execute();
    }

    /**
     * Utility method to set the text for a given child TextView
     * 
     * @param id
     * @param text
     */
    private void setTextViewText(int id, String text) {
        TextView tv = (TextView) (getActivity().findViewById(id));
        tv.setText(text);
    }

    private class ImageTask extends AsyncTask<Void, Void, Void> {
        private Drawable drawable = null;

        @Override
        protected Void doInBackground(Void... params) {
            try {
                String imageUrl = prefs.getString(Constants.PREF_PATIENT_PHOTO_URL, null);

                if (imageUrl != null) {
                    // grab that document and parse out the patient info
                    Connection<HData> connection = connectionRepository.getPrimaryConnection(HData.class);

                    byte[] raw = connection.getApi().getRootOperations().getRestTemplate().getForObject(imageUrl,
                            byte[].class);

                    this.drawable = Drawable.createFromStream(new ByteArrayInputStream(raw), "src name");
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            return null;
        }

        @Override
        protected void onPostExecute(Void result) {
            try {
                if (drawable != null) {
                    ImageView patientImage = (ImageView) getActivity().findViewById(R.id.patient_image);
                    patientImage.setImageDrawable(drawable);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

    }

}