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io.odysz.semantics.SemanticObject Maven / Gradle / Ivy
package io.odysz.semantics;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import io.odysz.anson.Anson;
import io.odysz.semantics.meta.TableMeta;
import io.odysz.transact.x.TransException;
/**
* The semantics data returned by transaction as the commitment result.
*
* @author [email protected]
*/
public class SemanticObject extends Anson {
protected HashMap props;
public HashMap props() { return props; }
/**@param prop
* @return null if the property doesn't exists
*/
public Class getType (String prop) {
if (prop == null || props == null || !props.containsKey(prop))
return null;
Object p = props.get(prop);
return p == null
? Object.class // has key, no value
: p.getClass();
}
public boolean has(String prop) {
return props != null && props.containsKey(prop) && props.get(prop) != null;
}
public Object get(String prop) {
return props == null ? null : props.get(prop);
}
public String getString(String prop) {
return props == null ? null : (String) props.get(prop);
}
public SemanticObject data() {
return (SemanticObject) get("data");
}
public SemanticObject data(SemanticObject data) {
return put("data", data);
}
public void clear() {
props.clear();
}
public String port() {
return (String) get("port");
}
public SemanticObject code(String c) {
return put("code", c);
}
public String code() {
return (String) get("code");
}
public SemanticObject port(String port) {
return put("port", port);
}
public String msg() {
return (String) get("msg");
}
public SemanticObject msg(String msg, Object... args) {
if (args == null || args.length == 0)
return put("msg", msg);
else
return put("msg", String.format(msg, args));
}
/**Put result set (AnResultset) into "rs", which is a 3d array.
* @param resultset
* @param total
* @return this
* @throws TransException
*/
public SemanticObject rs(Object resultset, int total) throws TransException {
add("total", total);
return add("rs", resultset);
}
public Object rs(int i) {
return ((ArrayList)get("rs")).get(i);
}
@SuppressWarnings("unchecked")
public int total(int i) {
if (get("total") == null)
return -1;
ArrayList lst = ((ArrayList)get("total"));
if (lst == null || lst.size() <= i)
return -1;
Object obj = lst.get(i);
if (obj == null)
return -1;
return (int)obj;
}
public int total() {
return total(0);
}
public SemanticObject total(int rsIdx, int total) throws TransException {
// the total(int) returned -1
if (total < 0) return this;
@SuppressWarnings("unchecked")
ArrayList lst = (ArrayList) get("total");
if (lst == null || lst.size() <= rsIdx)
throw new TransException("No such index for rs; %s", rsIdx);
lst.set(rsIdx, total);
return this;
}
public String error() {
return (String) get("error");
}
public SemanticObject error(String error, Object... args) {
if (args == null || args.length == 0)
return put("error", error);
else
return put("error", String.format(error, args));
}
public SemanticObject put(String prop, Object v) {
if (props == null)
props = new HashMap();
props.put(prop, v);
return this;
}
/**Add element 'elem' to array 'prop'.
* @param prop
* @param elem
* @return this
* @throws TransException
*/
@SuppressWarnings("unchecked")
public SemanticObject add(String prop, Object elem) throws TransException {
if (props == null)
props = new HashMap();
if (!props.containsKey(prop))
props.put(prop, new ArrayList());
if (props.get(prop) instanceof List)
((ArrayList) props.get(prop)).add(elem);
else throw new TransException("%s seams is not an array. elem %s can't been added", prop, elem);
return this;
}
/**Add int array.
* @param prop
* @param ints
* @return this
* @throws TransException
*/
public SemanticObject addInts(String prop, int[] ints) throws TransException {
for (int e : ints)
add(prop, e);
return this;
}
public Object remove(String prop) {
if (props != null && props.containsKey(prop))
return props.remove(prop);
else return null;
}
/**Print for reading - string can't been converted back to object
* @param out
*/
public void print(PrintStream out) {
if (props != null)
for (String k : props.keySet()) {
out.print(k);
out.print(" : ");
Class c = getType(k);
if (c == null)
continue;
else if (c.isAssignableFrom(SemanticObject.class)
|| SemanticObject.class.isAssignableFrom(c))
if ((SemanticObject)get(k) == null)
out.print(k + ": null");
else
((SemanticObject)get(k)).print(out);
else if (Collection.class.isAssignableFrom(c) || Map.class.isAssignableFrom(c)) {
Iterator i = ((Collection) get(k)).iterator();
out.println("[" + ((Collection) get(k)).size() + "]");
while (i.hasNext()) {
Object ele = i.next();
c = ele.getClass();
if (c.isAssignableFrom(SemanticObject.class)
|| SemanticObject.class.isAssignableFrom(c))
((SemanticObject)ele).print(out);
else
out.print(get(k));
}
}
else out.print(get(k));
out.print(",\t");
}
out.println("");
}
public String resulve(String tabl, String pk, int idx) {
List ids = resulve(tabl, pk);
return ids != null && ids.size() > idx
? ids.get(idx > 0 ? idx : ids.size() + idx) : null;
}
@SuppressWarnings("unchecked")
public List resulve(String tabl, String pk) {
return (List)((SemanticObject) ((SemanticObject)
get("resulved"))
.get(tabl))
.get(pk);
}
public int getInt(String n) {
return Integer.valueOf(getString(n));
}
/**
* Find results for entm.pk in table etnm.tbl.
* @see #resulve(String, String)
* @param entm
* @return resolved resource
* @since 1.4.40
*/
public String resulve(TableMeta entm, int idx) {
return resulve(entm.tbl, entm.pk, idx);
}
}
