[Library & Explore | develop]: Added software heritage as pid for research products.

1. environments/: Added in all environments, property: swhURL: "https://archive.softwareheritage.org/".
2. env-properties.ts: Added property swhURL?: string;
3. string-utils.class.ts: Added method "isValidSwhId()" and swhid in checks and definitions.
4. resultLandingInfo.ts: Added swhid in accepted types of interface Id.
5. resultLanding.component.ts: Added check for swhid in "getReferenceIdName()" and "getReferenceUrl()".
6. parsingFunctions.class.ts: Added pid[i].classid == "swhid" check in "parseIdentifiers()".
7. showIdentifiers.component.ts: Added "swhid" in display of pids.

landingPages/landing-utils/parsingFunctions.class.ts

@@ -514,7 +514,8 @@ export class ParsingFunctions {
     let identifiers = new Map<string, string[]>();
     
     if (pid.hasOwnProperty("classid") && pid['classid'] != "") {
-      if (pid.classid == "doi" || pid.classid == "pmc" || pid.classid == "handle" || pid.classid == "pmid" || pid.classid == "re3data") {
+      if (pid.classid == "doi" || pid.classid == "pmc" || pid.classid == "handle" || pid.classid == "pmid" || pid.classid == "re3data"
+        || pid.classid == "swhid") {
         if (!identifiers.has(pid.classid)) {
           identifiers.set(pid.classid, new Array<string>());
         }
@@ -522,7 +523,8 @@ export class ParsingFunctions {
       }
     } else {
       for (let i = 0; i < pid.length; i++) {
-        if (pid[i].classid == "doi" || pid[i].classid == "pmc" || pid[i].classid == "handle" || pid[i].classid == "pmid" || pid[i].classid == "re3data") {
+        if (pid[i].classid == "doi" || pid[i].classid == "pmc" || pid[i].classid == "handle" || pid[i].classid == "pmid" || pid[i].classid == "re3data"
+          || pid[i].classid == "swhid") {
           if (!identifiers.has(pid[i].classid)) {
             identifiers.set(pid[i].classid, new Array<string>());
           }

landingPages/landing-utils/showIdentifiers.component.ts

@@ -26,7 +26,7 @@ import {properties} from "../../../../environments/environment";
                 <span class="uk-text-meta uk-text-small" [class.uk-text-uppercase]="key != 're3data'">{{key}}: </span>
                 <span [class.uk-margin-small-left]="modal">
                   <ng-container *ngFor="let item of identifiers.get(key) let j=index">
-                    <a *ngIf="key == 'doi' || key == 'pmc' || key == 'pmid' || key == 'handle' || key == 're3data'"
+                    <a *ngIf="key == 'doi' || key == 'pmc' || key == 'pmid' || key == 'handle' || key == 're3data' || key == 'swhid'"
                        [href]="getUrl(key) + item" target="_blank" class="uk-display-inline-block custom-external">
                       {{item}}
                     </a>
@@ -124,6 +124,8 @@ export class ShowIdentifiersComponent implements AfterViewInit {
      return properties.handleURL;
    } else if(key == "re3data") {
      return properties.r3DataURL;
+   } else if(key == "swhid") {
+     return properties.swhURL;
    }
   }
 

landingPages/result/resultLanding.component.ts

@@ -825,6 +825,8 @@ export class ResultLandingComponent {
       return this.properties.pmidURL + id.value;
     } else if (id.type === "handle") {
       return this.properties.handleURL + id.value;
+    } else if (id.type === "swhid") {
+      return this.properties.swhURL + id.value;
     } else {
       return null;
     }
@@ -839,6 +841,8 @@ export class ResultLandingComponent {
       return 'PubMed';
     } else if (id.type === "handle") {
       return 'Handle.NET';
+    } else if(id.type == "swhid") {
+      return 'Software Heritage';
     } else {
       return null;
     }

utils/entities/resultLandingInfo.ts

@@ -8,7 +8,7 @@ import {
 } from "../result-preview/result-preview";
 
 export interface Id {
-  type: "pmid" | "doi" | "pmc" | "handle" | "openaire";
+  type: "pmid" | "doi" | "pmc" | "handle" | "openaire" | "swhid";
   value: string;
   trust: number
 }

utils/properties/env-properties.ts

@@ -44,6 +44,7 @@ export interface EnvProperties {
   cordisURL?: string;
   openDoarURL?: string;
   r3DataURL?: string;
+  swhURL?: string;
   fairSharingURL?: string,
   eoscMarketplaceURL?: string,
   sherpaURL?: string;

utils/string-utils.class.ts

@@ -149,7 +149,7 @@ export class DOI {
 }
 
 export class Identifier {
-  class: "doi" | "pmc" | "pmid" | "handle" | "ORCID" | "re3data" = null;
+  class: "doi" | "pmc" | "pmid" | "handle" | "ORCID" | "re3data" | "swhid" = null;
   id: string;
   
   public static getDOIsFromString(str: string): string[] {
@@ -202,13 +202,15 @@ export class Identifier {
       return {"class": "handle", "id": pid};
     } else if (Identifier.isValidRe3Data(pid)) {
       return {"class": "re3data", "id": pid};
+    } else if (Identifier.isValidSwhId(pid)) {
+      return {"class": "swhid", "id": pid};
     }
     //set it as a doi, to catch the case that doi has not valid format
     return (strict?null:{"class": "doi", "id": pid});
   }
 
   public static getPIDFromIdentifiers(identifiers: Map<string, string[]>): Identifier {
-    let classes:string [] = ["doi", "handle", "pmc", "pmid", "re3data"];
+    let classes:string [] = ["doi", "handle", "pmc", "pmid", "re3data", "swhid"];
     if(identifiers) {
       for (let cl of classes) {
         if (identifiers.get(cl)) {
@@ -257,6 +259,12 @@ export class Identifier {
     let exp = /(r3d[1-9]\d{0,8})/g;
     return str.match(exp) != null;
   }
+
+  public static isValidSwhId(str: string): boolean {
+    // let exp = /swh:1:(snp|rel|rev|dir|cnt):[0-9a-f]{40}/g;
+    let exp = /swh:1:snp:[0-9a-f]{40}/g;
+    return str.match(exp) != null;
+  }
 }
 
 export class StringUtils {