PDE should not warn if resource URI of unknown scheme cannot be found

Fixes #2031

Author: Dani-Hub

ui/org.eclipse.pde.core/src/org/eclipse/pde/internal/core/PreferenceInitializer.java

@@ -36,6 +36,7 @@ public void initializeDefaultPreferences() {
 		prefs.putInt(CompilerFlags.P_UNKNOWN_CLASS, CompilerFlags.WARNING);
 		prefs.putInt(CompilerFlags.P_DISCOURAGED_CLASS, CompilerFlags.WARNING);
 		prefs.putInt(CompilerFlags.P_UNKNOWN_RESOURCE, CompilerFlags.WARNING);
+		prefs.put(CompilerFlags.P_IGNORED_RESOURCE_PROTOCOLS, ""); //$NON-NLS-1$
 		prefs.putInt(CompilerFlags.P_UNKNOWN_IDENTIFIER, CompilerFlags.WARNING);
 		prefs.putInt(CompilerFlags.P_NOT_EXTERNALIZED, CompilerFlags.IGNORE);
 		prefs.putInt(CompilerFlags.P_SERVICE_COMP_WITHOUT_LAZY_ACT, CompilerFlags.WARNING);

ui/org.eclipse.pde.core/src/org/eclipse/pde/internal/core/builders/CompilerFlags.java

@@ -11,6 +11,7 @@
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     Code 9 Corporation - on going enhancements and maintenance
+ *     Daniel Kruegler - #2031 - PDE should not warn if resource URI of unknown scheme cannot be found
  *******************************************************************************/
 package org.eclipse.pde.internal.core.builders;
 
@@ -55,6 +56,7 @@ public class CompilerFlags {
 	public static final String P_UNKNOWN_ATTRIBUTE = "compilers.p.unknown-attribute"; //$NON-NLS-1$
 	public static final String P_UNKNOWN_CLASS = "compilers.p.unknown-class"; //$NON-NLS-1$
 	public static final String P_UNKNOWN_RESOURCE = "compilers.p.unknown-resource"; //$NON-NLS-1$
+	public static final String P_IGNORED_RESOURCE_PROTOCOLS = "compilers.p.ignored-resource-protocols"; //$NON-NLS-1$
 	public static final String P_UNKNOWN_IDENTIFIER = "compilers.p.unknown-identifier"; //$NON-NLS-1$
 	public static final String P_DISCOURAGED_CLASS = "compilers.p.discouraged-class"; //$NON-NLS-1$
 	public static final String P_NO_REQUIRED_ATT = "compilers.p.no-required-att"; //$NON-NLS-1$

ui/org.eclipse.pde.core/src/org/eclipse/pde/internal/core/builders/ExtensionsErrorReporter.java

@@ -11,11 +11,13 @@
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     Martin Karpisek <[email protected]> - Bug 526283
+ *     Daniel Kruegler - #2031 - PDE should not warn if resource URI of unknown scheme cannot be found
  *******************************************************************************/
 package org.eclipse.pde.internal.core.builders;
 
 import java.io.File;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Map;
@@ -597,7 +599,13 @@ private boolean resourceExists(String location) {
 			}
 		}
 
-		return false;
+		return isIgnoredResourceUri(location);
+	}
+
+	private boolean isIgnoredResourceUri(String location) {
+		final var ignoredProtocols = CompilerFlags.getString(fProject, CompilerFlags.P_IGNORED_RESOURCE_PROTOCOLS);
+		return Arrays.stream(ignoredProtocols.split(",")).map(p -> p.trim() + ":"). //$NON-NLS-1$ //$NON-NLS-2$
+				anyMatch(s -> location.regionMatches(true, 0, s, 0, s.length()));
 	}
 
 	protected void validateJavaAttribute(Element element, Attr attr) {

ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/PDEUIMessages.java

@@ -1890,6 +1890,8 @@ public class PDEUIMessages extends NLS {
 	public static String compilers_s_doc_folder;
 	public static String compilers_s_open_tags;
 	public static String compilers_p_exec_env_too_low;
+	public static String compilers_p_ignored_uri_protocols;
+	public static String compilers_p_ignored_uri_protocols_details;
 
 	public static String compilers_p_exported_pkgs;
 

ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/pderesources.properties

@@ -1634,6 +1634,8 @@ compilers_p_exported_pkgs = Unexported pac&kage:
 compilers_p_missing_exp_pkg = Missing versions on exported packages:
 compilers_p_missing_imp_pkg = Missing versions on imported packages:
 compilers_p_missing_require_bundle = Missing versions on required bundles:
+compilers_p_ignored_uri_protocols = Ignored resource protocols:
+compilers_p_ignored_uri_protocols_details = Filtered protocols of unknown resource URIs are ignored. List is comma separated.
 
 compilers_s_create_docs = &Generate reference documentation from schemas
 compilers_s_doc_folder = Do&cumentation folder:

ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/preferences/PDECompilersConfigurationBlock.java

@@ -12,6 +12,7 @@
  *     IBM Corporation - initial API and implementation
  *     Code 9 Corporation - on going enhancements and maintenance
  *     Johannes Ahlers <[email protected]> - bug 477677
+ *     Daniel Kruegler - #2031 - PDE should not warn if resource URI of unknown scheme cannot be found
  *******************************************************************************/
 package org.eclipse.pde.internal.ui.preferences;
 
@@ -45,6 +46,8 @@
 import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.jface.dialogs.IDialogSettings;
 import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.jface.layout.GridDataFactory;
+import org.eclipse.jface.layout.GridLayoutFactory;
 import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.jface.util.Util;
 import org.eclipse.jface.window.Window;
@@ -227,6 +230,7 @@ protected final static Key getPDEPrefKey(String key) {
 	private static final Key KEY_P_UNKNOWN_CLASS = getPDEPrefKey(CompilerFlags.P_UNKNOWN_CLASS);
 	private static final Key KEY_P_UNKNOWN_RESOURCE = getPDEPrefKey(CompilerFlags.P_UNKNOWN_RESOURCE);
 	private static final Key KEY_P_UNKNOWN_IDENTIFIER = getPDEPrefKey(CompilerFlags.P_UNKNOWN_IDENTIFIER);
+	private static final Key KEY_P_IGNORED_RESOURCE_PROTOCOLS = getPDEPrefKey(CompilerFlags.P_IGNORED_RESOURCE_PROTOCOLS);
 
 	//general
 	private static final Key KEY_P_DISCOURAGED_CLASS = getPDEPrefKey(CompilerFlags.P_DISCOURAGED_CLASS);
@@ -260,12 +264,20 @@ protected final static Key getPDEPrefKey(String key) {
 	private static final Key KEY_S_DOC_FOLDER = getPDEPrefKey(CompilerFlags.S_DOC_FOLDER);
 	private static final Key KEY_S_OPEN_TAGS = getPDEPrefKey(CompilerFlags.S_OPEN_TAGS);
 
-	private static String[] SEVERITIES = {PDEUIMessages.PDECompilersConfigurationBlock_error,
+	private static final String[] SEVERITIES = { PDEUIMessages.PDECompilersConfigurationBlock_error,
 			PDEUIMessages.PDECompilersConfigurationBlock_warning, PDEUIMessages.PDECompilersConfigurationBlock_info,
-			PDEUIMessages.PDECompilersConfigurationBlock_ignore
-			};
-
-	private static Key[] fgAllKeys = {KEY_F_UNRESOLVED_FEATURES, KEY_F_UNRESOLVED_PLUGINS, KEY_P_BUILD, KEY_P_BUILD_MISSING_OUTPUT, KEY_P_BUILD_SOURCE_LIBRARY, KEY_P_BUILD_OUTPUT_LIBRARY, KEY_P_BUILD_SRC_INCLUDES, KEY_P_BUILD_BIN_INCLUDES, KEY_P_BUILD_JAVA_COMPLIANCE, KEY_P_BUILD_JAVA_COMPILER, KEY_P_BUILD_ENCODINGS, KEY_P_INTERNAL, KEY_P_SERVICE_COMP_WITHOUT_LAZY, KEY_P_NO_AUTOMATIC_MODULE_NAME, KEY_P_DEPRECATED, KEY_P_DISCOURAGED_CLASS, KEY_P_INCOMPATIBLE_ENV, KEY_P_MISSING_EXPORT_PKGS, KEY_P_NO_REQUIRED_ATT, KEY_P_NOT_EXTERNALIZED, KEY_P_UNKNOWN_ATTRIBUTE, KEY_P_UNKNOWN_CLASS, KEY_P_UNKNOWN_ELEMENT, KEY_P_UNKNOWN_IDENTIFIER, KEY_P_UNKNOWN_RESOURCE, KEY_P_UNRESOLVED_EX_POINTS, KEY_P_UNRESOLVED_IMPORTS, KEY_P_VERSION_EXP_PKG, KEY_P_VERSION_IMP_PKG, KEY_P_VERSION_REQ_BUNDLE, KEY_P_VERSION_EXEC_ENV_TOO_LOW, KEY_S_CREATE_DOCS, KEY_S_DOC_FOLDER, KEY_S_OPEN_TAGS };
+			PDEUIMessages.PDECompilersConfigurationBlock_ignore };
+
+	private static final Key[] fgAllKeys = { KEY_F_UNRESOLVED_FEATURES, KEY_F_UNRESOLVED_PLUGINS, KEY_P_BUILD,
+			KEY_P_BUILD_MISSING_OUTPUT, KEY_P_BUILD_SOURCE_LIBRARY, KEY_P_BUILD_OUTPUT_LIBRARY,
+			KEY_P_BUILD_SRC_INCLUDES, KEY_P_BUILD_BIN_INCLUDES, KEY_P_BUILD_JAVA_COMPLIANCE, KEY_P_BUILD_JAVA_COMPILER,
+			KEY_P_BUILD_ENCODINGS, KEY_P_INTERNAL, KEY_P_SERVICE_COMP_WITHOUT_LAZY, KEY_P_NO_AUTOMATIC_MODULE_NAME,
+			KEY_P_DEPRECATED, KEY_P_DISCOURAGED_CLASS, KEY_P_INCOMPATIBLE_ENV, KEY_P_MISSING_EXPORT_PKGS,
+			KEY_P_NO_REQUIRED_ATT, KEY_P_NOT_EXTERNALIZED, KEY_P_UNKNOWN_ATTRIBUTE, KEY_P_UNKNOWN_CLASS,
+			KEY_P_UNKNOWN_ELEMENT, KEY_P_UNKNOWN_IDENTIFIER, KEY_P_UNKNOWN_RESOURCE, KEY_P_IGNORED_RESOURCE_PROTOCOLS,
+			KEY_P_UNRESOLVED_EX_POINTS, KEY_P_UNRESOLVED_IMPORTS, KEY_P_VERSION_EXP_PKG, KEY_P_VERSION_IMP_PKG,
+			KEY_P_VERSION_REQ_BUNDLE, KEY_P_VERSION_EXEC_ENV_TOO_LOW, KEY_S_CREATE_DOCS, KEY_S_DOC_FOLDER,
+			KEY_S_OPEN_TAGS };
 
 	/**
 	 * Constant representing the {@link IDialogSettings} section for this block
@@ -564,6 +576,10 @@ private Composite createPage(int kind, Composite folder, String name, String des
 				// References
 				client = createExpansibleComposite(sbody, PDEUIMessages.PDECompilersConfigurationBlock_references);
 				initializeComboControls(client, new String[] {PDEUIMessages.compilers_p_unknown_element, PDEUIMessages.compilers_p_unknown_attribute, PDEUIMessages.compilers_p_unknown_class, PDEUIMessages.compilers_p_discouraged_class, PDEUIMessages.compilers_p_unknown_resource, PDEUIMessages.compilers_p_unknown_identifier}, new Key[] {KEY_P_UNKNOWN_ELEMENT, KEY_P_UNKNOWN_ATTRIBUTE, KEY_P_UNKNOWN_CLASS, KEY_P_DISCOURAGED_CLASS, KEY_P_UNKNOWN_RESOURCE, KEY_P_UNKNOWN_IDENTIFIER,}, CompilerFlags.PLUGIN_FLAGS);
+				Composite comp = createComposite(client, 2, 2, GridData.FILL_HORIZONTAL, 0, 0);
+				Text ignoredProtocolsText = createTextControl(comp, PDEUIMessages.compilers_p_ignored_uri_protocols,
+						KEY_P_IGNORED_RESOURCE_PROTOCOLS, CompilerFlags.PLUGIN_FLAGS);
+				ignoredProtocolsText.setToolTipText(PDEUIMessages.compilers_p_ignored_uri_protocols_details);
 
 				break;
 			}
@@ -592,6 +608,17 @@ private void initializeComboControls(Composite composite, String[] labels, Key[]
 		}
 	}
 
+	/**
+	 * Creates a composite without inheriting the font from its parent.
+	 */
+	private static Composite createComposite(Composite parent, int columns, int hspan, int fill, int marginwidth,
+			int marginheight) {
+		Composite composite = new Composite(parent, SWT.NONE);
+		GridLayoutFactory.swtDefaults().numColumns(columns).margins(marginwidth, marginheight).applyTo(composite);
+		GridDataFactory.swtDefaults().align(SWT.FILL, SWT.CENTER).grab(true, false).span(hspan, 1).applyTo(composite);
+		return composite;
+	}
+
 	/**
 	 * Creates a checkbox button control in the parent
 	 */
@@ -664,7 +691,7 @@ protected void createComboControl(Composite parent, String label, Key key, int t
 	/**
 	 * Creates a new text control on the parent for the given pref key
 	 */
-	private void createTextControl(Composite parent, String label, Key key, int tabkind) {
+	private Text createTextControl(Composite parent, String label, Key key, int tabkind) {
 		SWTFactory.createLabel(parent, label, 1);
 		Text text = SWTFactory.createSingleText(parent, 1);
 		ControlData data = new ControlData(key, new String[0]);
@@ -681,6 +708,7 @@ private void createTextControl(Composite parent, String label, Key key, int tabk
 			fControlMap.put(mapkey, controls);
 		}
 		controls.add(text);
+		return text;
 	}
 
 	/**