This document is a MIDAS Civil API operating example using Java.
1. Setting Java Development Environment
1.1 Download file
Download an installing file from the Java official website.
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1.2 Install Java
Installing Java.
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These editors offer a convenient developing environment for users.
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(This manual is written using Eclipse.)
1.3 Install additional module
JSON Module helps your work powerfully in Java.
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⑦ You can find the JSON-Java is registered as below.
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2. Operating MIDAS/Civil API Using Java
Let’s look over with simple examples.
2.1 Operating MIDAS/Civil API
Civil can execute to communicate with API as below.
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MIDAS/Civil execute file path needs to be edited depending on the user.
2.2 Open MIDAS/Civil API Document
Open the existed file after running MIDAS/Civil.
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You can find the URL address in the APIServer.exe, which operates MIDAS/Civil through API.
2.3 MIDAS/Civil API- Run the Analysis and Close program
Now, run the analysis with opened MIDAS/Civil file and close the Civil.
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import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import org.json.JSONObject;
public class Example {
public static void main(String[] args) throws InterruptedException {
String mCivil = "C:\\CivilBuild-API\\CVLw.exe /API";
Runtime rt = Runtime.getRuntime();
Process p;
try {
p = rt.exec(mCivil);
p.getErrorStream().close();
Thread.sleep(10000);
String post = "POST";
String dcOpen = "/doc/open";
JSONObject jOpen = new JSONObject();
jOpen.put("Argument", "C:\\FSM 1Cells Box.mcb");
restAPI(post,dcOpen,jOpen);
String dcAnal = "/doc/anal";
JSONObject jDump = new JSONObject();
restAPI(post,dcAnal,jDump);
String dcExit = "/doc/exit";
restAPI(post,dcExit,jDump);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void restAPI(String rm, String ct, JSONObject jobj) {
try {
URL url = new URL("http://127.0.0.1:10024"+ct);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod(rm);
conn.setRequestProperty("Content-Type", "application/json");
conn.setDoInput(true);
conn.setDoOutput(true);
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(conn.getOutputStream()));
bw.write(jobj.toString());
bw.flush();
bw.close();
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder sb = new StringBuilder();
String line = null;
while((line=br.readLine()) !=null) {
sb.append(line);
}
System.out.print(sb.toString());
} catch (Exception e) {
e.printStackTrace();
}
}
} |
3. Command for operating
3.1 DOC Command
DOC command controls documents such as create/open/close files.
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import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import org.json.JSONObject;
public class docCommand {
public static void main(String[] args) {
String post = "POST";
//DOC OPEN
String dcOpen = "/doc/open";
JSONObject jOpen = new JSONObject();
jOpen.put("Argument", "C:\\FSM 1Cells Box.mcb");
restAPI(post,dcOpen,jOpen);
//DOC ANAL
String dcAnal = "/doc/anal";
JSONObject jDump = new JSONObject();
restAPI(post,dcAnal,jDump);
//DOC EXPORT
String dcExpt = "/doc/export";
JSONObject jExpt = new JSONObject();
jExpt.put("Argument", "C:\\FSM 1Cells Box.json");
restAPI(post,dcExpt,jExpt);
//DOC CLOSE
String dcClse = "/doc/close";
restAPI(post,dcClse,jDump);
//DOC NEW
String dcNew = "/doc/new";
restAPI(post,dcNew,jDump);
//DOC SAVEAS
String dcSvas = "/doc/saveas";
JSONObject jSvas = new JSONObject();
jSvas.put("Argument", "C:\\FSM 1Cells Box2.mcb");
restAPI(post,dcSvas,jSvas);
//DOC IMPORT
String dcImpt = "/doc/import";
JSONObject jImpt = new JSONObject();
jImpt.put("Argument", "C:\\FSM 1Cells Box.json");
restAPI(post,dcImpt,jImpt);
//DOC SAVE
String dcSave = "/doc/save";
restAPI(post,dcSave,jDump);
//DOC EXIT
String dcExit = "/doc/exit";
restAPI(post,dcExit,jDump);
}
public static void restAPI(String rm, String ct, JSONObject jobj) {
try {
URL url = new URL("http://127.0.0.1:10024"+ct);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod(rm);
conn.setRequestProperty("Content-Type", "application/json");
conn.setDoInput(true);
conn.setDoOutput(true);
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(conn.getOutputStream()));
bw.write(jobj.toString());
bw.flush();
bw.close();
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder sb = new StringBuilder();
String line = null;
while((line=br.readLine()) !=null) {
sb.append(line);
}
System.out.print(sb.toString());
} catch (Exception e) {
e.printStackTrace();
}
}
} |
3.2 DB Command
DB Command requests the data name. Each Data name is embodied by GET/POST/PUT/DELETE methods.
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import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class DeleteDB2 {
public static void main(String[] args) {
try {
URL url = new URL("http://127.0.0.1:10024/db/node");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("DELETE");
conn.setRequestProperty("Content-Type", "application/json");
conn.setDoOutput(true);
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder sb = new StringBuilder();
String line = null;
while((line=br.readLine()) !=null) {
sb.append(line);
}
System.out.print(sb.toString());
} catch (Exception e) {
e.printStackTrace();
}
}
} |
3.3 POST Command
Post Command is post-process operators after analysis.
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import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import org.json.JSONArray;
import org.json.JSONObject;
public class PostTable2 {
public static void main(String[] args) {
try {
URL url = new URL("http://127.0.0.1:10024/post/table");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json");
conn.setDoInput(true);
conn.setDoOutput(true);
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(conn.getOutputStream()));
JSONArray parts = new JSONArray();
parts.put("Part I");
parts.put("Part J");
JSONArray Ldcase = new JSONArray();
Ldcase.put("ULS_SET B(CB:max)");
Ldcase.put("ULS_SET B(CB:min)");
Ldcase.put("ULS_EQ(CB:max)");
Ldcase.put("ULS_EQ(CB:min)");
JSONObject Unit = new JSONObject();
Unit.put("FORCE", "KN");
Unit.put("DIST", "M");
Unit.put("HEAT", "CAL");
Unit.put("TEMP", "C");
JSONObject NdEl = new JSONObject();
NdEl.put("TO", "1003 to 1013");
JSONObject jKey = new JSONObject();
jKey.put("EXPORT_PATH", "C:\\Users\\yjw0608\\Desktop\\FSM 1-Cell Box\\ResultTable.json");
jKey.put("TABLE_TYPE", "beam force");
jKey.put("UNIT", Unit);
jKey.put("NODE_ELEMS", NdEl);
jKey.put("LOAD_CASE_NAMES", Ldcase);
jKey.put("PARTS", parts);
JSONObject jObj = new JSONObject();
jObj.put("Argument", jKey);
bw.write(jObj.toString());
bw.flush();
bw.close();
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder sb = new StringBuilder();
String line = null;
while((line=br.readLine()) !=null) {
sb.append(line);
}
JSONObject obj = new JSONObject(sb.toString());
JSONArray data1 = obj.getJSONObject("empty").getJSONArray("DATA").getJSONArray(0);
System.out.print(data1.toString());
} catch (Exception e) {
e.printStackTrace();
}
}
} |
3.4 VIEW Command
View Command takes images in Post-process.
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