Java tutorial
/* * Copyright (C) 2012 University of Washington * * 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.opendatakit.services.submissions.provider; import android.content.ContentProvider; import android.content.ContentValues; import android.database.Cursor; import android.database.SQLException; import android.net.Uri; import android.os.ParcelFileDescriptor; import android.support.annotation.NonNull; import android.util.Log; import com.fasterxml.jackson.core.JsonParseException; import com.fasterxml.jackson.databind.JsonMappingException; import org.apache.commons.lang3.CharEncoding; import org.opendatakit.provider.ProviderConsts; import org.opendatakit.aggregate.odktables.rest.ElementDataType; import org.opendatakit.aggregate.odktables.rest.ElementType; import org.opendatakit.aggregate.odktables.rest.KeyValueStoreConstants; import org.opendatakit.aggregate.odktables.rest.TableConstants; import org.opendatakit.database.data.ColumnDefinition; import org.opendatakit.database.data.OrderedColumns; import org.opendatakit.database.DatabaseConstants; import org.opendatakit.services.database.OdkConnectionFactorySingleton; import org.opendatakit.services.database.OdkConnectionInterface; import org.opendatakit.properties.CommonToolProperties; import org.opendatakit.properties.DynamicPropertiesCallback; import org.opendatakit.properties.PropertiesSingleton; import org.opendatakit.properties.PropertyManager; import org.opendatakit.provider.DataTableColumns; import org.opendatakit.provider.KeyValueStoreColumns; import org.opendatakit.services.utilities.EncryptionUtils; import org.opendatakit.services.utilities.EncryptionUtils.EncryptedFormInformation; import org.opendatakit.utilities.FileSet; import org.opendatakit.database.utilities.CursorUtils; import org.opendatakit.services.database.utlities.ODKDatabaseImplUtils; import org.opendatakit.utilities.ODKFileUtils; import org.opendatakit.logging.WebLogger; import org.opendatakit.logging.WebLoggerIf; import org.opendatakit.database.service.DbHandle; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Text; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStreamWriter; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Collections; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Locale; import java.util.Map; import java.util.Properties; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.OutputKeys; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; /** * The WebKit does better if there is a content provider vending files to it. * This provider vends files under the Forms and Instances directories (only). * * @author mitchellsundt@gmail.com * */ public class SubmissionProvider extends ContentProvider { private static final String ISO8601_DATE_ONLY_FORMAT = "yyyy-MM-dd"; private static final String ISO8601_DATE_FORMAT = "yyyy-MM-dd'T'HH:mm:ssZ"; private static final String t = "SubmissionProvider"; private static final String XML_OPENROSA_NAMESPACE = "http://openrosa.org/xforms"; // // any // arbitrary // namespace private static final String NEW_LINE = "\n"; /** * change to true expression if you want to debug this content provider */ private static void possiblyWaitForContentProviderDebugger() { if (false) { android.os.Debug.waitForDebugger(); int len = "for setting breakpoint".length(); } } @Override public boolean onCreate() { // IMPORTANT NOTE: the Application object is not yet created! try { ODKFileUtils.verifyExternalStorageAvailability(); File f = new File(ODKFileUtils.getOdkFolder()); if (!f.exists()) { f.mkdir(); } else if (!f.isDirectory()) { Log.e(t, f.getAbsolutePath() + " is not a directory!"); return false; } } catch (Exception e) { Log.e(t, "External storage not available"); return false; } return true; } @SuppressWarnings("unchecked") private static void putElementValue(HashMap<String, Object> dataMap, ColumnDefinition defn, Object value) { List<ColumnDefinition> nesting = new ArrayList<ColumnDefinition>(); ColumnDefinition cur = defn.getParent(); while (cur != null) { nesting.add(cur); cur = cur.getParent(); } HashMap<String, Object> elem = dataMap; for (int i = nesting.size() - 1; i >= 0; --i) { cur = nesting.get(i); if (elem.containsKey(cur.getElementName())) { elem = (HashMap<String, Object>) elem.get(cur.getElementName()); } else { elem.put(cur.getElementName(), new HashMap<String, Object>()); elem = (HashMap<String, Object>) elem.get(cur.getElementName()); } } elem.put(defn.getElementName(), value); } @SuppressWarnings("unchecked") private static int generateXmlHelper(Document d, Element data, int idx, String key, Map<String, Object> values, WebLoggerIf logger) { Object o = values.get(key); Element e = d.createElement(key); if (o == null) { logger.e(t, "Unexpected null value"); } else if (o instanceof Integer) { Text txtNode = d.createTextNode(((Integer) o).toString()); e.appendChild(txtNode); } else if (o instanceof Double) { Text txtNode = d.createTextNode(((Double) o).toString()); e.appendChild(txtNode); } else if (o instanceof Boolean) { Text txtNode = d.createTextNode(((Boolean) o).toString()); e.appendChild(txtNode); } else if (o instanceof String) { Text txtNode = d.createTextNode(((String) o)); e.appendChild(txtNode); } else if (o instanceof List) { StringBuilder b = new StringBuilder(); List<Object> al = (List<Object>) o; for (Object ob : al) { if (ob instanceof Integer) { b.append(((Integer) ob).toString()); } else if (ob instanceof Double) { b.append(((Double) ob).toString()); } else if (ob instanceof Boolean) { b.append(((Boolean) ob).toString()); } else if (ob instanceof String) { b.append(((String) ob)); } else { throw new IllegalArgumentException("Unexpected type in XML submission serializer"); } b.append(" "); } Text txtNode = d.createTextNode(b.toString().trim()); e.appendChild(txtNode); } else if (o instanceof Map) { // it is an object... Map<String, Object> m = (Map<String, Object>) o; int nidx = 0; ArrayList<String> entryNames = new ArrayList<String>(); entryNames.addAll(m.keySet()); Collections.sort(entryNames); for (String name : entryNames) { nidx = generateXmlHelper(d, e, nidx, name, m, logger); } } else { throw new IllegalArgumentException("Unexpected object type in XML submission serializer"); } data.appendChild(e); return idx; } /** * The incoming URI is of the form: * ..../appName/tableId/instanceId?formId=&formVersion= * * where instanceId is the DataTableColumns._ID */ @SuppressWarnings("unchecked") @Override public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException { possiblyWaitForContentProviderDebugger(); final boolean asXml = uri.getAuthority().equalsIgnoreCase(ProviderConsts.XML_SUBMISSION_AUTHORITY); if (mode != null && !mode.equals("r")) { throw new IllegalArgumentException("Only read access is supported"); } // URI == ..../appName/tableId/instanceId?formId=&formVersion= List<String> segments = uri.getPathSegments(); if (segments.size() != 4) { throw new IllegalArgumentException("Unknown URI (incorrect number of path segments!) " + uri); } PropertyManager propertyManager = new PropertyManager(getContext()); final String appName = segments.get(0); ODKFileUtils.verifyExternalStorageAvailability(); ODKFileUtils.assertDirectoryStructure(appName); WebLoggerIf logger = WebLogger.getLogger(appName); final String tableId = segments.get(1); final String instanceId = segments.get(2); final String submissionInstanceId = segments.get(3); PropertiesSingleton props = CommonToolProperties.get(getContext(), appName); String userEmail = props.getProperty(CommonToolProperties.KEY_ACCOUNT); String username = props.getProperty(CommonToolProperties.KEY_USERNAME); String activeUser = props.getActiveUser(); String rolesList = props.getProperty(CommonToolProperties.KEY_ROLES_LIST); String currentLocale = props.getLocale(); DbHandle dbHandleName = OdkConnectionFactorySingleton.getOdkConnectionFactoryInterface() .generateInternalUseDbHandle(); OdkConnectionInterface db = null; try { // +1 referenceCount if db is returned (non-null) db = OdkConnectionFactorySingleton.getOdkConnectionFactoryInterface().getConnection(appName, dbHandleName); boolean success = false; try { success = ODKDatabaseImplUtils.get().hasTableId(db, tableId); } catch (Exception e) { logger.printStackTrace(e); throw new SQLException("Unknown URI (exception testing for tableId) " + uri); } if (!success) { throw new SQLException("Unknown URI (missing data table for tableId) " + uri); } // Get the table properties specific to XML submissions String xmlInstanceName = null; String xmlRootElementName = null; String xmlDeviceIdPropertyName = null; String xmlUserIdPropertyName = null; String xmlBase64RsaPublicKey = null; try { Cursor c = null; try { c = db.query(DatabaseConstants.KEY_VALUE_STORE_ACTIVE_TABLE_NAME, new String[] { KeyValueStoreColumns.KEY, KeyValueStoreColumns.VALUE }, KeyValueStoreColumns.TABLE_ID + "=? AND " + KeyValueStoreColumns.PARTITION + "=? AND " + KeyValueStoreColumns.ASPECT + "=? AND " + KeyValueStoreColumns.KEY + " IN (?,?,?,?,?)", new String[] { tableId, KeyValueStoreConstants.PARTITION_TABLE, KeyValueStoreConstants.ASPECT_DEFAULT, KeyValueStoreConstants.XML_INSTANCE_NAME, KeyValueStoreConstants.XML_ROOT_ELEMENT_NAME, KeyValueStoreConstants.XML_DEVICE_ID_PROPERTY_NAME, KeyValueStoreConstants.XML_USER_ID_PROPERTY_NAME, KeyValueStoreConstants.XML_BASE64_RSA_PUBLIC_KEY }, null, null, null, null); c.moveToFirst(); if (c.getCount() > 0) { int idxKey = c.getColumnIndex(KeyValueStoreColumns.KEY); int idxValue = c.getColumnIndex(KeyValueStoreColumns.VALUE); do { String key = c.getString(idxKey); String value = c.getString(idxValue); if (KeyValueStoreConstants.XML_INSTANCE_NAME.equals(key)) { xmlInstanceName = value; } else if (KeyValueStoreConstants.XML_ROOT_ELEMENT_NAME.equals(key)) { xmlRootElementName = value; } else if (KeyValueStoreConstants.XML_DEVICE_ID_PROPERTY_NAME.equals(key)) { xmlDeviceIdPropertyName = value; } else if (KeyValueStoreConstants.XML_USER_ID_PROPERTY_NAME.equals(key)) { xmlUserIdPropertyName = value; } else if (KeyValueStoreConstants.XML_BASE64_RSA_PUBLIC_KEY.equals(key)) { xmlBase64RsaPublicKey = value; } } while (c.moveToNext()); } } finally { c.close(); c = null; } OrderedColumns orderedDefns = ODKDatabaseImplUtils.get().getUserDefinedColumns(db, tableId); // Retrieve the values of the record to be emitted... HashMap<String, Object> values = new HashMap<String, Object>(); // issue query to retrieve the most recent non-checkpoint data record // for the instanceId StringBuilder b = new StringBuilder(); b.append("SELECT * FROM ").append(tableId).append(" as T WHERE ").append(DataTableColumns.ID) .append("=?").append(" AND ").append(DataTableColumns.SAVEPOINT_TYPE) .append(" IS NOT NULL AND ").append(DataTableColumns.SAVEPOINT_TIMESTAMP) .append("=(SELECT max(V.").append(DataTableColumns.SAVEPOINT_TIMESTAMP).append(") FROM ") .append(tableId).append(" as V WHERE V.").append(DataTableColumns.ID).append("=T.") .append(DataTableColumns.ID).append(" AND V.").append(DataTableColumns.SAVEPOINT_TYPE) .append(" IS NOT NULL").append(")"); String[] selectionArgs = new String[] { instanceId }; FileSet freturn = new FileSet(appName); String datestamp = null; try { ODKDatabaseImplUtils.AccessContext accessContext = ODKDatabaseImplUtils.get() .getAccessContext(db, tableId, activeUser, rolesList); c = ODKDatabaseImplUtils.get().rawQuery(db, b.toString(), selectionArgs, null, accessContext); b.setLength(0); if (c.moveToFirst() && c.getCount() == 1) { String rowETag = null; String filterType = null; String filterValue = null; String formId = null; String locale = null; String savepointType = null; String savepointCreator = null; String savepointTimestamp = null; String instanceName = null; // OK. we have the record -- work through all the terms for (int i = 0; i < c.getColumnCount(); ++i) { ColumnDefinition defn = null; String columnName = c.getColumnName(i); try { defn = orderedDefns.find(columnName); } catch (IllegalArgumentException e) { // ignore... } if (defn != null && !c.isNull(i)) { if (xmlInstanceName != null && defn.getElementName().equals(xmlInstanceName)) { instanceName = CursorUtils.getIndexAsString(c, i); } // user-defined column ElementType type = defn.getType(); ElementDataType dataType = type.getDataType(); logger.i(t, "element type: " + defn.getElementType()); if (dataType == ElementDataType.integer) { Integer value = CursorUtils.getIndexAsType(c, Integer.class, i); putElementValue(values, defn, value); } else if (dataType == ElementDataType.number) { Double value = CursorUtils.getIndexAsType(c, Double.class, i); putElementValue(values, defn, value); } else if (dataType == ElementDataType.bool) { Integer tmp = CursorUtils.getIndexAsType(c, Integer.class, i); Boolean value = tmp == null ? null : (tmp != 0); putElementValue(values, defn, value); } else if (type.getElementType().equals("date")) { String value = CursorUtils.getIndexAsString(c, i); String jrDatestamp = (value == null) ? null : (new SimpleDateFormat(ISO8601_DATE_ONLY_FORMAT, Locale.US)) .format(new Date(TableConstants.milliSecondsFromNanos(value))); putElementValue(values, defn, jrDatestamp); } else if (type.getElementType().equals("dateTime")) { String value = CursorUtils.getIndexAsString(c, i); String jrDatestamp = (value == null) ? null : (new SimpleDateFormat(ISO8601_DATE_FORMAT, Locale.US)) .format(new Date(TableConstants.milliSecondsFromNanos(value))); putElementValue(values, defn, jrDatestamp); } else if (type.getElementType().equals("time")) { String value = CursorUtils.getIndexAsString(c, i); putElementValue(values, defn, value); } else if (dataType == ElementDataType.array) { ArrayList<Object> al = CursorUtils.getIndexAsType(c, ArrayList.class, i); putElementValue(values, defn, al); } else if (dataType == ElementDataType.string) { String value = CursorUtils.getIndexAsString(c, i); putElementValue(values, defn, value); } else /* unrecognized */ { throw new IllegalStateException( "unrecognized data type: " + defn.getElementType()); } } else if (columnName.equals(DataTableColumns.SAVEPOINT_TIMESTAMP)) { savepointTimestamp = CursorUtils.getIndexAsString(c, i); } else if (columnName.equals(DataTableColumns.ROW_ETAG)) { rowETag = CursorUtils.getIndexAsString(c, i); } else if (columnName.equals(DataTableColumns.FILTER_TYPE)) { filterType = CursorUtils.getIndexAsString(c, i); } else if (columnName.equals(DataTableColumns.FILTER_VALUE)) { filterValue = CursorUtils.getIndexAsString(c, i); } else if (columnName.equals(DataTableColumns.FORM_ID)) { formId = CursorUtils.getIndexAsString(c, i); } else if (columnName.equals(DataTableColumns.LOCALE)) { locale = CursorUtils.getIndexAsString(c, i); } else if (columnName.equals(DataTableColumns.FORM_ID)) { formId = CursorUtils.getIndexAsString(c, i); } else if (columnName.equals(DataTableColumns.SAVEPOINT_TYPE)) { savepointType = CursorUtils.getIndexAsString(c, i); } else if (columnName.equals(DataTableColumns.SAVEPOINT_CREATOR)) { savepointCreator = CursorUtils.getIndexAsString(c, i); } } // OK got all the values into the values map -- emit // contents b.setLength(0); File submissionXml = new File(ODKFileUtils.getInstanceFolder(appName, tableId, instanceId), (asXml ? "submission.xml" : "submission.json")); File manifest = new File(ODKFileUtils.getInstanceFolder(appName, tableId, instanceId), "manifest.json"); submissionXml.delete(); manifest.delete(); freturn.instanceFile = submissionXml; if (asXml) { // Pre-processing -- collapse all geopoints into a // string-valued representation for (ColumnDefinition defn : orderedDefns.getColumnDefinitions()) { ElementType type = defn.getType(); ElementDataType dataType = type.getDataType(); if (dataType == ElementDataType.object && (type.getElementType().equals("geopoint") || type.getElementType().equals("mimeUri"))) { Map<String, Object> parent = null; List<ColumnDefinition> parents = new ArrayList<ColumnDefinition>(); ColumnDefinition d = defn.getParent(); while (d != null) { parents.add(d); d = d.getParent(); } parent = values; for (int i = parents.size() - 1; i >= 0; --i) { Object o = parent.get(parents.get(i).getElementName()); if (o == null) { parent = null; break; } parent = (Map<String, Object>) o; } if (parent != null) { Object o = parent.get(defn.getElementName()); if (o != null) { if (type.getElementType().equals("geopoint")) { Map<String, Object> geopoint = (Map<String, Object>) o; // OK. we have geopoint -- get the // lat, long, alt, etc. Double latitude = (Double) geopoint.get("latitude"); Double longitude = (Double) geopoint.get("longitude"); Double altitude = (Double) geopoint.get("altitude"); Double accuracy = (Double) geopoint.get("accuracy"); String gpt = "" + latitude + " " + longitude + " " + altitude + " " + accuracy; parent.put(defn.getElementName(), gpt); } else if (type.getElementType().equals("mimeUri")) { Map<String, Object> mimeuri = (Map<String, Object>) o; String uriFragment = (String) mimeuri.get("uriFragment"); String contentType = (String) mimeuri.get("contentType"); if (uriFragment != null) { File f = ODKFileUtils.getAsFile(appName, uriFragment); if (f.equals(manifest)) { throw new IllegalStateException( "Unexpected collision with manifest.json"); } freturn.addAttachmentFile(f, contentType); parent.put(defn.getElementName(), f.getName()); } } else { throw new IllegalStateException("Unhandled transform case"); } } } } } datestamp = (new SimpleDateFormat(ISO8601_DATE_FORMAT, Locale.US)) .format(new Date(TableConstants.milliSecondsFromNanos(savepointTimestamp))); // For XML, we traverse the map to serialize it DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder docBuilder = dbf.newDocumentBuilder(); Document d = docBuilder.newDocument(); d.setXmlStandalone(true); Element e = d.createElement((xmlRootElementName == null) ? "data" : xmlRootElementName); d.appendChild(e); e.setAttribute("id", tableId); DynamicPropertiesCallback cb = new DynamicPropertiesCallback(appName, tableId, instanceId, activeUser, currentLocale, username, userEmail); int idx = 0; Element meta = d.createElementNS(XML_OPENROSA_NAMESPACE, "meta"); meta.setPrefix("jr"); Element v = d.createElementNS(XML_OPENROSA_NAMESPACE, "instanceID"); Text txtNode = d.createTextNode(submissionInstanceId); v.appendChild(txtNode); meta.appendChild(v); if (xmlDeviceIdPropertyName != null) { String deviceId = propertyManager.getSingularProperty(xmlDeviceIdPropertyName, cb); if (deviceId != null) { v = d.createElementNS(XML_OPENROSA_NAMESPACE, "deviceID"); txtNode = d.createTextNode(deviceId); v.appendChild(txtNode); meta.appendChild(v); } } if (xmlUserIdPropertyName != null) { String userId = propertyManager.getSingularProperty(xmlUserIdPropertyName, cb); if (userId != null) { v = d.createElementNS(XML_OPENROSA_NAMESPACE, "userID"); txtNode = d.createTextNode(userId); v.appendChild(txtNode); meta.appendChild(v); } } v = d.createElementNS(XML_OPENROSA_NAMESPACE, "timeEnd"); txtNode = d.createTextNode(datestamp); v.appendChild(txtNode); meta.appendChild(v); // these are extra metadata tags... if (instanceName != null) { v = d.createElement("instanceName"); txtNode = d.createTextNode(instanceName); v.appendChild(txtNode); meta.appendChild(v); } else { v = d.createElement("instanceName"); txtNode = d.createTextNode(savepointTimestamp); v.appendChild(txtNode); meta.appendChild(v); } // these are extra metadata tags... // rowID v = d.createElement("rowID"); txtNode = d.createTextNode(instanceId); v.appendChild(txtNode); meta.appendChild(v); // rowETag v = d.createElement("rowETag"); if (rowETag != null) { txtNode = d.createTextNode(rowETag); v.appendChild(txtNode); } meta.appendChild(v); // filterType v = d.createElement("filterType"); if (filterType != null) { txtNode = d.createTextNode(filterType); v.appendChild(txtNode); } meta.appendChild(v); // filterValue v = d.createElement("filterValue"); if (filterValue != null) { txtNode = d.createTextNode(filterValue); v.appendChild(txtNode); } meta.appendChild(v); // formID v = d.createElement("formID"); txtNode = d.createTextNode(formId); v.appendChild(txtNode); meta.appendChild(v); // locale v = d.createElement("locale"); txtNode = d.createTextNode(locale); v.appendChild(txtNode); meta.appendChild(v); // savepointType v = d.createElement("savepointType"); txtNode = d.createTextNode(savepointType); v.appendChild(txtNode); meta.appendChild(v); // savepointCreator v = d.createElement("savepointCreator"); if (savepointCreator != null) { txtNode = d.createTextNode(savepointCreator); v.appendChild(txtNode); } meta.appendChild(v); // savepointTimestamp v = d.createElement("savepointTimestamp"); txtNode = d.createTextNode(savepointTimestamp); v.appendChild(txtNode); meta.appendChild(v); // and insert the meta block into the XML e.appendChild(meta); idx = 3; ArrayList<String> entryNames = new ArrayList<String>(); entryNames.addAll(values.keySet()); Collections.sort(entryNames); for (String name : entryNames) { idx = generateXmlHelper(d, e, idx, name, values, logger); } TransformerFactory factory = TransformerFactory.newInstance(); Transformer transformer = factory.newTransformer(); Properties outFormat = new Properties(); outFormat.setProperty(OutputKeys.INDENT, "no"); outFormat.setProperty(OutputKeys.METHOD, "xml"); outFormat.setProperty(OutputKeys.OMIT_XML_DECLARATION, "yes"); outFormat.setProperty(OutputKeys.VERSION, "1.0"); outFormat.setProperty(OutputKeys.ENCODING, "UTF-8"); transformer.setOutputProperties(outFormat); ByteArrayOutputStream out = new ByteArrayOutputStream(); DOMSource domSource = new DOMSource(d.getDocumentElement()); StreamResult result = new StreamResult(out); transformer.transform(domSource, result); out.flush(); out.close(); b.append(out.toString(CharEncoding.UTF_8)); // OK we have the document in the builder (b). String doc = b.toString(); freturn.instanceFile = submissionXml; // see if the form is encrypted and we can // encrypt it... EncryptedFormInformation formInfo = EncryptionUtils.getEncryptedFormInformation(appName, tableId, xmlBase64RsaPublicKey, instanceId); if (formInfo != null) { File submissionXmlEnc = new File(submissionXml.getParentFile(), submissionXml.getName() + ".enc"); submissionXmlEnc.delete(); // if we are encrypting, the form cannot be // reopened afterward // and encrypt the submission (this is a // one-way operation)... if (!EncryptionUtils.generateEncryptedSubmission(freturn, doc, submissionXml, submissionXmlEnc, formInfo)) { return null; } // at this point, the freturn object has // been re-written with the encrypted media // and xml files. } else { exportFile(doc, submissionXml, logger); } } else { // Pre-processing -- collapse all mimeUri into filename for (ColumnDefinition defn : orderedDefns.getColumnDefinitions()) { ElementType type = defn.getType(); ElementDataType dataType = type.getDataType(); if (dataType == ElementDataType.object && type.getElementType().equals("mimeUri")) { Map<String, Object> parent = null; List<ColumnDefinition> parents = new ArrayList<ColumnDefinition>(); ColumnDefinition d = defn.getParent(); while (d != null) { parents.add(d); d = d.getParent(); } parent = values; for (int i = parents.size() - 1; i >= 0; --i) { Object o = parent.get(parents.get(i).getElementName()); if (o == null) { parent = null; break; } parent = (Map<String, Object>) o; } if (parent != null) { Object o = parent.get(defn.getElementName()); if (o != null) { if (dataType == ElementDataType.object && type.getElementType().equals("mimeUri")) { Map<String, Object> mimeuri = (Map<String, Object>) o; String uriFragment = (String) mimeuri.get("uriFragment"); String contentType = (String) mimeuri.get("contentType"); File f = ODKFileUtils.getAsFile(appName, uriFragment); if (f.equals(manifest)) { throw new IllegalStateException( "Unexpected collision with manifest.json"); } freturn.addAttachmentFile(f, contentType); parent.put(defn.getElementName(), f.getName()); } else { throw new IllegalStateException("Unhandled transform case"); } } } } } // For JSON, we construct the model, then emit model + // meta + data HashMap<String, Object> wrapper = new HashMap<String, Object>(); wrapper.put("tableId", tableId); wrapper.put("instanceId", instanceId); HashMap<String, Object> formDef = new HashMap<String, Object>(); formDef.put("table_id", tableId); formDef.put("model", orderedDefns.getDataModel()); wrapper.put("formDef", formDef); wrapper.put("data", values); wrapper.put("metadata", new HashMap<String, Object>()); HashMap<String, Object> elem = (HashMap<String, Object>) wrapper.get("metadata"); if (instanceName != null) { elem.put("instanceName", instanceName); } elem.put("saved", "COMPLETE"); elem.put("timestamp", datestamp); b.append(ODKFileUtils.mapper.writeValueAsString(wrapper)); // OK we have the document in the builder (b). String doc = b.toString(); exportFile(doc, submissionXml, logger); } exportFile(freturn.serializeUriFragmentList(getContext()), manifest, logger); return ParcelFileDescriptor.open(manifest, ParcelFileDescriptor.MODE_READ_ONLY); } } finally { if (c != null && !c.isClosed()) { c.close(); c = null; } } } catch (ParserConfigurationException e) { logger.printStackTrace(e); } catch (TransformerException e) { logger.printStackTrace(e); } catch (JsonParseException e) { logger.printStackTrace(e); } catch (JsonMappingException e) { logger.printStackTrace(e); } catch (IOException e) { logger.printStackTrace(e); } } finally { if (db != null) { try { // release the reference... // this does not necessarily close the db handle // or terminate any pending transaction db.releaseReference(); } finally { // this will release the final reference and close the database OdkConnectionFactorySingleton.getOdkConnectionFactoryInterface().removeConnection(appName, dbHandleName); } } } return null; } /** * This method actually writes the JSON appName-relative manifest to disk. * * @param payload * @param outputFilePath * @param logger * @return */ private static boolean exportFile(String payload, File outputFilePath, WebLoggerIf logger) { // write xml file FileOutputStream os = null; OutputStreamWriter osw = null; try { os = new FileOutputStream(outputFilePath, false); osw = new OutputStreamWriter(os, CharEncoding.UTF_8); osw.write(payload); osw.flush(); osw.close(); return true; } catch (IOException e) { logger.e(t, "Error writing file"); logger.printStackTrace(e); try { osw.close(); os.close(); } catch (IOException ex) { logger.printStackTrace(ex); } return false; } } @Override public int delete(@NonNull Uri uri, String selection, String[] selectionArgs) { return 0; } @Override public String getType(@NonNull Uri uri) { return null; } @Override public Uri insert(@NonNull Uri uri, ContentValues values) { return null; } @Override public Cursor query(@NonNull Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { return null; } @Override public int update(@NonNull Uri uri, ContentValues values, String selection, String[] selectionArgs) { return 0; } }