30430669996

Committed 29 Jul 2026 07:10AM UTC coverage: 34.372% (+0.5%) from 33.91%

Build # 30430669996

Build Type

push

github

Committed by

web-flow

Commit Message

Merge pull request #569 from knowledgepixels/270-nanopub-not-found-handling

feat: add a "nanopub not found" page (#270)

Coverage Stats

2460 of 7910 branches covered (31.1%)

Branch coverage included in aggregate %.

4801 of 13215 relevant lines covered (36.33%)

5.62 hits per line

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55.74

src/main/java/com/knowledgepixels/nanodash/page/ViewPage.java

package com.knowledgepixels.nanodash.page;

import java.io.ByteArrayInputStream;
import java.util.Base64;

import com.knowledgepixels.nanodash.NanopubElement;
import com.knowledgepixels.nanodash.NanopubLookup;
import com.knowledgepixels.nanodash.Utils;
import com.knowledgepixels.nanodash.component.NanopubItem;
import com.knowledgepixels.nanodash.component.TemplateFormPreview;
import com.knowledgepixels.nanodash.component.TitleBar;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.eclipse.rdf4j.rio.RDFFormat;
import org.nanopub.MalformedNanopubException;
import org.nanopub.Nanopub;
import org.nanopub.NanopubImpl;
import org.nanopub.vocabulary.NTEMPLATE;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * ViewPage is the page that displays a single nanopublication.
 */
public class ViewPage extends NanodashPage {

    private static final Logger logger = LoggerFactory.getLogger(ViewPage.class);

    /**
     * The mount path for this page.
     */
    public static final String MOUNT_PATH = "/view";

    /**
     * {@inheritDoc}
     */
    @Override
    public String getMountPath() {
        return MOUNT_PATH;
    }

    /**
     * Constructor for the ViewPage.
     *
     * @param parameters The page parameters containing the nanopub ID and display options.
     */
    public ViewPage(final PageParameters parameters) {
        super(parameters);
        add(new TitleBar("titlebar", this, "preview"));
        addNanopubItem(this, parameters);
    }

    static void addNanopubItem(NanodashPage page, final PageParameters parameters) {
        Nanopub np;
        String nanopubTrig = parameters.get("_nanopub_trig").toOptionalString();
        boolean isPreview = nanopubTrig != null;
        if (isPreview) {
            try {
                byte[] trig = Base64.getUrlDecoder().decode(nanopubTrig);
                np = new NanopubImpl(new ByteArrayInputStream(trig), RDFFormat.TRIG);
            } catch (MalformedNanopubException | java.io.IOException | IllegalArgumentException ex) {
                throw new RuntimeException("Failed to parse nanopub from '_nanopub_trig' parameter", ex);
            }
        } else {
            // Nothing to show without the nanopub itself, so a failed lookup goes to the
            // not-found page (or, for a malformed id, the error page explaining why).
            NanopubLookup lookup = NanopubLookup.lookUp(parameters.get("id").toString());
            if (!lookup.isFound()) {
                NanopubNotFoundPage.forwardFor(lookup);
            }
            np = lookup.getNanopub();
        }
        boolean showHeader = "on".equals(parameters.get("show-header").toOptionalString());
        boolean showFooter = "on".equals(parameters.get("show-footer").toOptionalString());
        boolean showProv = !"off".equals(parameters.get("show-prov").toOptionalString());
        boolean showPubinfo = !"off".equals(parameters.get("show-pubinfo").toOptionalString());
        String templateId = parameters.get("template").toString(null);
        page.add(new Label("heading", isPreview ? "Preview Nanopublication" : "Nanopublication"));
        page.add(new NanopubItem("nanopub", NanopubElement.get(np), templateId).setProvenanceHidden(!showProv).setPubinfoHidden(!showPubinfo).setHeaderHidden(!showHeader).setFooterHidden(!showFooter));

        if (Utils.isNanopubOfClass(np, NTEMPLATE.ASSERTION_TEMPLATE)) {
            WebMarkupContainer section = new WebMarkupContainer("template-form-preview-section");
            try {
                section.add(new TemplateFormPreview("template-form-preview", np));
            } catch (Exception ex) {
                logger.error("Failed to generate template form preview: {}", ex.getMessage());
                String message = ex.getMessage() != null ? ex.getMessage() : ex.getClass().getName();
                section.add(new Label("template-form-preview", "<p class=\"negative\">Error generating template form preview: " + message + "</p>").setEscapeModelStrings(false));
            }
            page.add(section);
        } else {
            page.add(new WebMarkupContainer("template-form-preview-section").setVisible(false));
        }
    }

}

1	package com.knowledgepixels.nanodash.page;
2
3	import java.io.ByteArrayInputStream;
4	import java.util.Base64;
5
6	import com.knowledgepixels.nanodash.NanopubElement;
7	import com.knowledgepixels.nanodash.NanopubLookup;
8	import com.knowledgepixels.nanodash.Utils;
9	import com.knowledgepixels.nanodash.component.NanopubItem;
10	import com.knowledgepixels.nanodash.component.TemplateFormPreview;
11	import com.knowledgepixels.nanodash.component.TitleBar;
12	import org.apache.wicket.markup.html.WebMarkupContainer;
13	import org.apache.wicket.markup.html.basic.Label;
14	import org.apache.wicket.request.mapper.parameter.PageParameters;
15	import org.eclipse.rdf4j.rio.RDFFormat;
16	import org.nanopub.MalformedNanopubException;
17	import org.nanopub.Nanopub;
18	import org.nanopub.NanopubImpl;
19	import org.nanopub.vocabulary.NTEMPLATE;
20	import org.slf4j.Logger;
21	import org.slf4j.LoggerFactory;
22
23	/**
24	* ViewPage is the page that displays a single nanopublication.
25	*/
26	public class ViewPage extends NanodashPage {
27
28	private static final Logger logger = LoggerFactory.getLogger(ViewPage.class);	12✔
29
30	/**
31	* The mount path for this page.
32	*/
33	public static final String MOUNT_PATH = "/view";
34
35	/**
36	* {@inheritDoc}
37	*/
38	@Override
39	public String getMountPath() {
40	return MOUNT_PATH;	6✔
41	}
42
43	/**
44	* Constructor for the ViewPage.
45	*
46	* @param parameters The page parameters containing the nanopub ID and display options.
47	*/
48	public ViewPage(final PageParameters parameters) {
49	super(parameters);	9✔
50	add(new TitleBar("titlebar", this, "preview"));	48✔
51	addNanopubItem(this, parameters);	9✔
52	}	3✔
53
54	static void addNanopubItem(NanodashPage page, final PageParameters parameters) {
55	Nanopub np;
56	String nanopubTrig = parameters.get("_nanopub_trig").toOptionalString();	15✔
57	boolean isPreview = nanopubTrig != null;	12!
58	if (isPreview) {	6!
59	try {
60	byte[] trig = Base64.getUrlDecoder().decode(nanopubTrig);	×
61	np = new NanopubImpl(new ByteArrayInputStream(trig), RDFFormat.TRIG);	×
62	} catch (MalformedNanopubException \| java.io.IOException \| IllegalArgumentException ex) {	×
63	throw new RuntimeException("Failed to parse nanopub from '_nanopub_trig' parameter", ex);	×
64	}	×
65	} else {
66	// Nothing to show without the nanopub itself, so a failed lookup goes to the
67	// not-found page (or, for a malformed id, the error page explaining why).
68	NanopubLookup lookup = NanopubLookup.lookUp(parameters.get("id").toString());	18✔
69	if (!lookup.isFound()) {	9✔
70	NanopubNotFoundPage.forwardFor(lookup);	×
71	}
72	np = lookup.getNanopub();	9✔
73	}
74	boolean showHeader = "on".equals(parameters.get("show-header").toOptionalString());	21✔
75	boolean showFooter = "on".equals(parameters.get("show-footer").toOptionalString());	21✔
76	boolean showProv = !"off".equals(parameters.get("show-prov").toOptionalString());	30!
77	boolean showPubinfo = !"off".equals(parameters.get("show-pubinfo").toOptionalString());	30!
78	String templateId = parameters.get("template").toString(null);	18✔
79	page.add(new Label("heading", isPreview ? "Preview Nanopublication" : "Nanopublication"));	45!
80	page.add(new NanopubItem("nanopub", NanopubElement.get(np), templateId).setProvenanceHidden(!showProv).setPubinfoHidden(!showPubinfo).setHeaderHidden(!showHeader).setFooterHidden(!showFooter));	99!
81
82	if (Utils.isNanopubOfClass(np, NTEMPLATE.ASSERTION_TEMPLATE)) {	12!
83	WebMarkupContainer section = new WebMarkupContainer("template-form-preview-section");	×
84	try {
85	section.add(new TemplateFormPreview("template-form-preview", np));	×
86	} catch (Exception ex) {	×
87	logger.error("Failed to generate template form preview: {}", ex.getMessage());	×
88	String message = ex.getMessage() != null ? ex.getMessage() : ex.getClass().getName();	×
89	section.add(new Label("template-form-preview", "<p class=\"negative\">Error generating template form preview: " + message + "</p>").setEscapeModelStrings(false));	×
90	}	×
91	page.add(section);	×
92	} else {	×
93	page.add(new WebMarkupContainer("template-form-preview-section").setVisible(false));	42✔
94	}
95	}	3✔
96
97	}

knowledgepixels / nanodash / 30430669996

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