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package org.linaro.connect.sched;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import org.linaro.connect.LinaroConnect;
import org.linaro.connect.ScheduleItemActivity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.text.format.Time;
import android.util.Log;
public class ScheduleItem implements Serializable {
public final static String INTENT_FIELD = "schedule_item";
private static final long serialVersionUID = 1L;
private final HashMap<String, String> mFields;
private ScheduleItem() {
mFields = new HashMap<String, String>();
}
private void addField(String key, String val) {
mFields.put(key, val);
}
public String getSummary() {
return mFields.get("SUMMARY");
}
public String getDescription() {
String desc = mFields.get("DESCRIPTION");
if( desc != null )
desc = desc.replaceAll("\\\\N", "\\\n");
return desc;
}
public String getLocation() {
return mFields.get("LOCATION");
}
public String[] getCategories() {
return mFields.get("CATEGORIES").split(",");
}
public String getUrl() {
return mFields.get("URL");
}
public Uri getUri() {
return Uri.parse(getUrl());
}
private Date getDate(String field) {
String s = mFields.get(field);
Time t = new Time();
t.parse(s);
return new Date(t.toMillis(false));
}
/**
* If a filter is provided and the dayofweek != -1, it will only display
* the time and not the date
*/
public String getStartTime(Filter f) {
String fmt = "E HH:mm";
Date d = getDate("DTSTART");
if(f != null && f.dayOfWeek != -1)
fmt = "HH:mm";
SimpleDateFormat sdf = new SimpleDateFormat(fmt);
return sdf.format(d);
}
@Override
public String toString() {
return getSummary();
}
private boolean matches(Filter f) {
if( f == null )
return true;
boolean matches = true;
if(matches && f.dayOfWeek != -1) {
Date d = getDate("DTSTART");
Calendar c = Calendar.getInstance();
c.setTime(d);
matches = (c.get(Calendar.DAY_OF_WEEK) == f.dayOfWeek);
}
if( matches && f.track != null ) {
matches = false;
for(String cat: getCategories()) {
if( f.track.equals(cat) ) {
matches = true;
break;
}
}
}
return matches;
}
public Intent getIntent(Context ctx) {
Intent i = new Intent(ctx, ScheduleItemActivity.class);
i.putExtra(INTENT_FIELD, this);
return i;
}
private static ScheduleItem parseLine(String line, ScheduleItem cur,
List<ScheduleItem> items,
Filter f) {
if( "BEGIN:VEVENT".equals(line) ) {
cur = new ScheduleItem();
}
else if( "END:VEVENT".equals(line) ) {
if(cur != null && cur.matches(f))
items.add(cur);
cur = null;
}
else if( cur != null ) {
String parts[] = line.split(":", 2);
if( parts.length > 1 )
cur.addField(parts[0], parts[1]);
}
return cur;
}
private static int getDayOfWeek(String day) {
if( "monday".equalsIgnoreCase(day))
return Calendar.MONDAY;
else if( "tuesday".equalsIgnoreCase(day))
return Calendar.TUESDAY;
else if( "wednesday".equalsIgnoreCase(day))
return Calendar.WEDNESDAY;
else if( "thursday".equalsIgnoreCase(day))
return Calendar.THURSDAY;
else if( "friday".equalsIgnoreCase(day))
return Calendar.FRIDAY;
else if( "saturday".equalsIgnoreCase(day))
return Calendar.SATURDAY;
else if( "sunday".equalsIgnoreCase(day))
return Calendar.SUNDAY;
return -1;
}
public static class Filter {
int dayOfWeek = -1;
String track = null;
public Filter(String day, String track) {
dayOfWeek = getDayOfWeek(day);
this.track = track;
}
}
/**
* Takes an iCal input stream and returns corresponding objects. If a filter
* is provided it will narrow down results based on it
*/
public static ScheduleItem[] fromInputStream(InputStream is, Filter f) {
ArrayList<ScheduleItem> items = new ArrayList<ScheduleItem>();
if (is == null)
return new ScheduleItem[0];
BufferedReader br = new BufferedReader(new InputStreamReader(is), 4096);
try {
String line;
ScheduleItem cur = null;
while( (line=br.readLine()) != null )
cur = parseLine(line, cur, items, f);
}
catch(IOException e) {
Log.e(LinaroConnect.TAG, "Error reading schedule input stream", e);
}
try {
br.close();
} catch (IOException e) {}
return items.toArray(new ScheduleItem[items.size()]);
}
}
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