#392

Committed 29 Apr 2025 06:44PM UTC coverage: 89.357%. First build

Build # #392

Build Type

Pull #233

github

Committed by

Pfeil

Commit Message

fix: add newline at end of gradle.yml for consistency

Pull Request Pull Request #233: Version 2.1.0

Run Details

608 of 700 new or added lines in 28 files covered. (86.86%)

1889 of 2114 relevant lines covered (89.36%)

0.89 hits per line

Source File
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67.65

/src/main/java/edu/kit/datamanager/ro_crate/preview/PreviewGenerator.java

package edu.kit.datamanager.ro_crate.preview;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Class responsible for the generation of the human-readable representation of
 * the metadata. For this to work the nodejs library rochtml has to be
 * installed. This can be done using: npm install -g ro-crate-html-js or npm
 * install ro-crate-html-js
 */
public class PreviewGenerator {

    private static Logger LOG = LoggerFactory.getLogger(PreviewGenerator.class);
    private static final String command = "rochtml";

    public static boolean isRochtmlAvailable() {
        ProcessBuilder builder = new ProcessBuilder();
        // this is the equivalent of "rochtml dir/ro-crate-metadata.json"
        // check if we are running on windows or unix
        String os = System.getProperty("os.name").toLowerCase();
        if (os.contains("win")) {
            builder.command("cmd.exe", "/c", command);

        } else {
            builder.command("sh", "-c", command);
        }
        Process process;
        try {
            process = builder.start();
            int exitVal = process.waitFor();
            return exitVal == 0;
        } catch (InterruptedException | IOException ex) {
        }
        return false;
    }

    /**
     * The method that from the location of the crate generates the html file.
     *
     * @param location the location of the crate in the filesystem.
     */
    public static void generatePreview(String location) {
        if (!isRochtmlAvailable()) {
            LOG.error("rochtml is not available. Please install rochtml using npm install -g ro-crate-html-js");
            return;
        }
        ProcessBuilder builder = new ProcessBuilder();
        // this is the equivalent of "rochtml dir/ro-crate-metadata.json"
        // check if we are running on windows or unix
        String os = System.getProperty("os.name").toLowerCase();
        if (os.contains("win")) {
            builder.command("cmd.exe", "/c", command + " " + location + "/ro-crate-metadata.json");

        } else {
            builder.command("sh", "-c", command + " " + location + "/ro-crate-metadata.json");
        }

        Process process;
        try {
            process = builder.start();
            StringBuilder output = new StringBuilder();

            BufferedReader reader = new BufferedReader(
                    new InputStreamReader(process.getInputStream()));

            String line;
            while ((line = reader.readLine()) != null) {
                output.append(line).append("\n");
            }
            reader.close();
            int exitVal = process.waitFor();
            if (exitVal != 0) {
                //abnormal...
                throw new Exception("failed command");
            }
        } catch (Exception e) {
            LOG.error("Error while generating preview: {}", e.getMessage());
        }
    }
}

1	package edu.kit.datamanager.ro_crate.preview;
2
3	import java.io.BufferedReader;
4	import java.io.IOException;
5	import java.io.InputStreamReader;
6
7	import org.slf4j.Logger;
8	import org.slf4j.LoggerFactory;
9
10	/**
11	* Class responsible for the generation of the human-readable representation of
12	* the metadata. For this to work the nodejs library rochtml has to be
13	* installed. This can be done using: npm install -g ro-crate-html-js or npm
14	* install ro-crate-html-js
15	*/
16	public class PreviewGenerator {	×
17
18	private static Logger LOG = LoggerFactory.getLogger(PreviewGenerator.class);	1✔
19	private static final String command = "rochtml";
20
21	public static boolean isRochtmlAvailable() {
22	ProcessBuilder builder = new ProcessBuilder();	1✔
23	// this is the equivalent of "rochtml dir/ro-crate-metadata.json"
24	// check if we are running on windows or unix
25	String os = System.getProperty("os.name").toLowerCase();	1✔
26	if (os.contains("win")) {	1✔
NEW 27	builder.command("cmd.exe", "/c", command);	×
28
29	} else {
30	builder.command("sh", "-c", command);	1✔
31	}
32	Process process;
33	try {
34	process = builder.start();	1✔
35	int exitVal = process.waitFor();	1✔
36	return exitVal == 0;	1✔
NEW 37	} catch (InterruptedException \| IOException ex) {	×
38	}
NEW 39	return false;	×
40	}
41
42	/**
43	* The method that from the location of the crate generates the html file.
44	*
45	* @param location the location of the crate in the filesystem.
46	*/
47	public static void generatePreview(String location) {
48	if (!isRochtmlAvailable()) {	1✔
NEW 49	LOG.error("rochtml is not available. Please install rochtml using npm install -g ro-crate-html-js");	×
NEW 50	return;	×
51	}
52	ProcessBuilder builder = new ProcessBuilder();	1✔
53	// this is the equivalent of "rochtml dir/ro-crate-metadata.json"
54	// check if we are running on windows or unix
55	String os = System.getProperty("os.name").toLowerCase();	1✔
56	if (os.contains("win")) {	1✔
NEW 57	builder.command("cmd.exe", "/c", command + " " + location + "/ro-crate-metadata.json");	×
58
59	} else {
60	builder.command("sh", "-c", command + " " + location + "/ro-crate-metadata.json");	1✔
61	}
62
63	Process process;
64	try {
65	process = builder.start();	1✔
66	StringBuilder output = new StringBuilder();	1✔
67
68	BufferedReader reader = new BufferedReader(	1✔
69	new InputStreamReader(process.getInputStream()));	1✔
70
71	String line;
72	while ((line = reader.readLine()) != null) {	1✔
NEW 73	output.append(line).append("\n");	×
74	}
75	reader.close();	1✔
76	int exitVal = process.waitFor();	1✔
77	if (exitVal != 0) {	1✔
78	//abnormal...
NEW 79	throw new Exception("failed command");	×
80	}
NEW 81	} catch (Exception e) {	×
NEW 82	LOG.error("Error while generating preview: {}", e.getMessage());	×
83	}	1✔
84	}	1✔
85	}

kit-data-manager / ro-crate-java / #392

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