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package net.sf.basedb.meludi; |
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import java.io.BufferedReader; |
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import java.io.IOException; |
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import java.io.InputStreamReader; |
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import java.io.Reader; |
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import java.nio.charset.Charset; |
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import java.util.Collection; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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import net.sf.basedb.core.BioPlate; |
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import net.sf.basedb.core.BioWell; |
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import net.sf.basedb.core.Hardware; |
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import net.sf.basedb.core.ItemList; |
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import net.sf.basedb.core.Job; |
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import net.sf.basedb.core.Kit; |
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import net.sf.basedb.core.Permission; |
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import net.sf.basedb.core.Protocol; |
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import net.sf.basedb.meludi.converter.ValueConverter; |
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|
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import org.json.simple.JSONArray; |
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import org.json.simple.JSONObject; |
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import org.json.simple.parser.JSONParser; |
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import org.json.simple.parser.ParseException; |
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/** |
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Utility functions for JSON. |
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@since 1.0 |
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*/ |
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public class JsonUtil |
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{ |
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/** |
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Set proper response headers for returning a JSON response. |
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This sets the content type to: application/json;charset=UTF8 |
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and disable caching of the responses. |
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*/ |
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public static void setJsonResponseHeaders(HttpServletResponse resp) |
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{ |
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resp.setContentType("application/json"); |
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resp.setCharacterEncoding("UTF-8"); |
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resp.setHeader("Cache-Control", "no-cache, max-age=0"); |
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} |
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|
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/** |
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Parse the request as JSON data. |
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@since 1.6 |
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*/ |
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public static JSONObject parseRequest(HttpServletRequest request) |
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throws IOException, ParseException |
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{ |
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Reader reader = new BufferedReader(new InputStreamReader(request.getInputStream(), Charset.forName("UTF-8"))); |
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JSONObject json = (JSONObject)new JSONParser().parse(reader); |
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return json; |
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} |
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|
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/** |
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Create a JSON array from a collection. |
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*/ |
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@SuppressWarnings("unchecked") |
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public static <F> JSONArray toArray(Collection<F> values, ValueConverter<F, ?> converter) |
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{ |
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JSONArray array = new JSONArray(); |
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if (values != null) |
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{ |
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for (F value : values) |
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{ |
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array.add(converter.convert(value)); |
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} |
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} |
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return array; |
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} |
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|
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/** |
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Get a value from a JSON object as a Float value, or null |
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if no value exists. |
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@since 2.12 |
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*/ |
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public static Float getAsFloat(JSONObject json, String key) |
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{ |
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Number n = (Number)json.get(key); |
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return n == null ? null : n.floatValue(); |
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} |
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|
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@SuppressWarnings("unchecked") |
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public static JSONObject getProtocolAsJSON(Protocol p) |
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{ |
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if (p == null) return null; |
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JSONObject json = new JSONObject(); |
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json.put("id", p.getId()); |
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json.put("name", p.getName()); |
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json.put("editable", p.hasPermission(Permission.WRITE)); |
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return json; |
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} |
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@SuppressWarnings("unchecked") |
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public static JSONObject getKitAsJSON(Kit k) |
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{ |
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if (k == null) return null; |
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JSONObject json = new JSONObject(); |
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json.put("id", k.getId()); |
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json.put("name", k.getName()); |
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json.put("editable", k.hasPermission(Permission.WRITE)); |
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return json; |
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} |
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@SuppressWarnings("unchecked") |
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public static JSONObject getBioWellAsJSON(BioWell well, boolean includePlateInfo) |
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{ |
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if (well == null) return null; |
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JSONObject json = new JSONObject(); |
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json.put("id", well.getId()); |
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json.put("row", well.getRow()); |
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json.put("column", well.getColumn()); |
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json.put("location", well.getCoordinate()); |
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json.put("canAdd", well.canAddBioMaterial()); |
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json.put("canRemove", well.canClearBioMaterial()); |
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if (includePlateInfo) |
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{ |
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BioPlate plate = well.getPlate(); |
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JSONObject jsonPlate = new JSONObject(); |
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jsonPlate.put("id", plate.getId()); |
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jsonPlate.put("name", plate.getName()); |
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jsonPlate.put("barcode", plate.getBarcode()); |
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jsonPlate.put("editable", plate.hasPermission(Permission.WRITE)); |
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|
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Hardware storage = plate.getFreezer(); |
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if (storage != null || plate.getSection() != null || plate.getTray() != null || plate.getPosition() != null) |
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{ |
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JSONObject jsonStorage = new JSONObject(); |
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if (storage != null) |
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{ |
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jsonStorage.put("id", storage.getId()); |
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jsonStorage.put("name", storage.getName()); |
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} |
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jsonStorage.put("section", plate.getSection()); |
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jsonStorage.put("tray", plate.getTray()); |
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jsonStorage.put("position", plate.getPosition()); |
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jsonPlate.put("storage", jsonStorage); |
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} |
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|
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json.put("bioPlate", jsonPlate); |
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} |
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return json; |
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} |
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@SuppressWarnings("unchecked") |
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public static JSONObject getBioPlateAsJSON(BioPlate plate) |
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{ |
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if (plate == null) return null; |
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JSONObject json = new JSONObject(); |
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|
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JSONObject jsonPlate = new JSONObject(); |
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json.put("id", plate.getId()); |
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json.put("name", plate.getName()); |
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json.put("barcode", plate.getBarcode()); |
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json.put("editable", plate.hasPermission(Permission.WRITE)); |
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|
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Hardware storage = plate.getFreezer(); |
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if (storage != null || plate.getSection() != null || plate.getTray() != null || plate.getPosition() != null) |
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{ |
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JSONObject jsonStorage = new JSONObject(); |
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if (storage != null) |
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{ |
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jsonStorage.put("id", storage.getId()); |
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jsonStorage.put("name", storage.getName()); |
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} |
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jsonStorage.put("section", plate.getSection()); |
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jsonStorage.put("tray", plate.getTray()); |
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jsonStorage.put("position", plate.getPosition()); |
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json.put("storage", jsonStorage); |
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} |
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return json; |
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} |
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|
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/** |
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Get job information as a JSON object. |
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@since 2.16 |
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*/ |
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@SuppressWarnings("unchecked") |
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public static JSONObject getJobAsJSON(Job job) |
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{ |
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if (job == null) return null; |
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JSONObject json = new JSONObject(); |
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json.put("id", job.getId()); |
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json.put("name", job.getName()); |
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json.put("editable", job.hasPermission(Permission.WRITE)); |
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json.put("status", job.getStatus().name()); |
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json.put("statusMessage", job.getStatusMessage()); |
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json.put("scheduled", Meludi.CONVERTER_DATETIME_TO_STRING.convert(job.getScheduled())); |
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json.put("started", Meludi.CONVERTER_DATETIME_TO_STRING.convert(job.getStarted())); |
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json.put("ended", Meludi.CONVERTER_DATETIME_TO_STRING.convert(job.getEnded())); |
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json.put("externalId", job.getExternalId()); |
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json.put("server", job.getServer()); |
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return json; |
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|
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} |
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|
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@SuppressWarnings("unchecked") |
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public static JSONObject getItemListAsJSON(ItemList l) |
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{ |
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if (l == null) return null; |
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JSONObject json = new JSONObject(); |
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json.put("id", l.getId()); |
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json.put("name", l.getName()); |
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json.put("editable", l.hasPermission(Permission.WRITE)); |
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json.put("size", l.getSize()); |
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return json; |
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} |
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} |