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Posted to commits@camel.apache.org by da...@apache.org on 2020/09/15 15:57:07 UTC

[camel] 18/22: CAMEL-15478: api-component should generate @ApiParam with more fine grained details so we know which parameter is for which api method.

This is an automated email from the ASF dual-hosted git repository.

davsclaus pushed a commit to branch api
in repository https://gitbox.apache.org/repos/asf/camel.git

commit 3c9fbf9c59f84601feb0c819acc9b97e7666e24f
Author: Claus Ibsen <cl...@gmail.com>
AuthorDate: Tue Sep 15 15:13:38 2020 +0200

    CAMEL-15478: api-component should generate @ApiParam with more fine grained details so we know which parameter is for which api method.
---
 .../camel/support/component/ApiMethodParser.java   | 88 ++++++----------------
 .../org/apache/camel/maven/JavaSourceParser.java   | 16 ++++
 .../camel/maven/ApiComponentGeneratorMojoTest.java |  3 +
 .../maven/FileApiMethodGeneratorMojoTest.java      |  3 +
 .../maven/JavadocApiMethodGeneratorMojoTest.java   |  2 +
 5 files changed, 46 insertions(+), 66 deletions(-)

diff --git a/core/camel-support/src/main/java/org/apache/camel/support/component/ApiMethodParser.java b/core/camel-support/src/main/java/org/apache/camel/support/component/ApiMethodParser.java
index b2a2818..751f1a5 100644
--- a/core/camel-support/src/main/java/org/apache/camel/support/component/ApiMethodParser.java
+++ b/core/camel-support/src/main/java/org/apache/camel/support/component/ApiMethodParser.java
@@ -24,8 +24,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 
 import org.apache.camel.util.ObjectHelper;
 import org.apache.camel.util.StringHelper;
@@ -37,15 +35,8 @@ import org.slf4j.LoggerFactory;
  */
 public abstract class ApiMethodParser<T> {
 
-    // also used by JavadocApiMethodGeneratorMojo
-    @Deprecated
-    public static final Pattern ARGS_PATTERN = Pattern.compile("\\s*([^<\\s]+)\\s*(<[^>]+>)?\\s+([^\\s,]+)\\s*,?");
-
     private static final String METHOD_PREFIX
             = "^(\\s*(public|final|synchronized|native)\\s+)*(\\s*<((?!\\sextends\\s)[^>])+>)?\\s*(\\S+)\\s+([^\\(]+\\s*)\\(";
-    private static final Pattern METHOD_PATTERN = Pattern
-            .compile("\\s*([^<\\s]+)?\\s*(<[^>]+>)?(<(?<genericTypeParameterName>\\S+)\\s+extends\\s+"
-                     + "(?<genericTypeParameterUpperBound>\\S+)>\\s+(?<returnType>\\S+))?\\s+(\\S+)\\s*\\(\\s*(?<signature>[\\S\\s,]*)\\)\\s*;?\\s*");
 
     private static final String JAVA_LANG = "java.lang.";
     private static final Map<String, Class<?>> PRIMITIVE_TYPES;
@@ -145,35 +136,29 @@ public abstract class ApiMethodParser<T> {
 
             log.debug("Processing {}", signature);
 
-            final Matcher methodMatcher = METHOD_PATTERN.matcher(signature);
-            if (!methodMatcher.matches()) {
-                throw new IllegalArgumentException("Invalid method signature " + signature);
-            }
-            // handle generic methods with single bounded type parameters
-            String genericTypeParameterName = null;
-            String genericTypeParameterUpperBound = null;
-            String returnType = null;
-            try {
-                genericTypeParameterName = methodMatcher.group("genericTypeParameterName");
-                genericTypeParameterUpperBound = methodMatcher.group("genericTypeParameterUpperBound");
-                returnType = methodMatcher.group("returnType");
-                if (returnType != null && returnType.equals(genericTypeParameterName)) {
-                    returnType = genericTypeParameterUpperBound;
-                }
-            } catch (IllegalArgumentException e) {
-                // ignore
-            }
-
-            // void is not a valid return type
-            String rt = returnType != null ? returnType : methodMatcher.group(1);
-            // use Object as return type which is what the existing behaviour was using
-            final Class<?> resultType = !"void".equals(rt) ? forName(rt) : void.class;
-            final String name = methodMatcher.group(7);
-            final String argSignature = methodMatcher.group(8);
-
             final List<ApiMethodArg> arguments = new ArrayList<>();
             final List<Class<?>> argTypes = new ArrayList<>();
 
+            // Map<String, Map<XXX, Bla>> foo(
+            int space = 0;
+            int max = signature.indexOf('(');
+            for (int i = max; i > 0; i--) {
+                char ch = signature.charAt(i);
+                if (Character.isWhitespace(ch)) {
+                    space = i;
+                    break;
+                }
+            }
+            final String name = signature.substring(space, max).trim();
+            String rt = signature.substring(0, space).trim();
+            // remove generic so the type is just the class name
+            int pos = rt.indexOf('<');
+            if (pos != -1) {
+                rt = rt.substring(0, pos);
+            }
+            final String returnType = rt;
+            final Class<?> resultType = forName(returnType);
+
             // use the signature arguments from the parser so we do not have to use our own magic regexp parsing that is flawed
             Map<String, String> args = signaturesArguments.get(signature);
             if (args != null) {
@@ -183,7 +168,7 @@ public abstract class ApiMethodParser<T> {
                     String shortTypeArgs = rawTypeArg;
                     String typeArg = null;
                     // handle generics
-                    int pos = shortTypeArgs.indexOf('<');
+                    pos = shortTypeArgs.indexOf('<');
                     if (pos != -1) {
                         typeArg = shortTypeArgs.substring(pos);
                         // remove leading and trailing < > as that is what the old way was doing
@@ -207,36 +192,6 @@ public abstract class ApiMethodParser<T> {
                     }
                     arguments.add(new ApiMethodArg(argName, type, typeArg, rawTypeArg, typeDesc));
                 }
-            } else {
-                // TODO: Remove this when no longer needed
-                // @deprecated way which we should remove in the future
-                final Matcher argsMatcher = ARGS_PATTERN.matcher(argSignature);
-                while (argsMatcher.find()) {
-                    String genericParameterName = argsMatcher.group(1);
-                    if (genericTypeParameterName != null && genericTypeParameterName.equals(genericParameterName)) {
-                        genericParameterName = genericTypeParameterUpperBound;
-                    }
-                    // there may be some trailing > from the pattern so remove those
-                    genericParameterName = genericParameterName.replaceAll(">", "");
-                    final Class<?> type = forName(genericParameterName);
-                    argTypes.add(type);
-                    String genericParameterUpperbound = argsMatcher.group(2);
-                    String typeArgs = genericParameterUpperbound != null
-                            ? genericParameterUpperbound.substring(1, genericParameterUpperbound.length() - 1).replace(" ", "")
-                            : null;
-                    if (typeArgs != null && typeArgs.equals(genericTypeParameterName)) {
-                        typeArgs = genericTypeParameterUpperBound;
-                    }
-                    String typeName = argsMatcher.group(3);
-                    String typeDesc = null;
-                    if (parameters != null && name != null && typeName != null) {
-                        Map<String, String> params = parameters.get(name);
-                        if (params != null) {
-                            typeDesc = params.get(typeName);
-                        }
-                    }
-                    arguments.add(new ApiMethodArg(typeName, type, typeArgs, null, typeDesc));
-                }
             }
 
             Method method;
@@ -414,6 +369,7 @@ public abstract class ApiMethodParser<T> {
             return name;
         }
 
+        @Deprecated
         public Class<?> getResultType() {
             return resultType;
         }
diff --git a/tooling/maven/camel-api-component-maven-plugin/src/main/java/org/apache/camel/maven/JavaSourceParser.java b/tooling/maven/camel-api-component-maven-plugin/src/main/java/org/apache/camel/maven/JavaSourceParser.java
index 356e73f..48351cc 100644
--- a/tooling/maven/camel-api-component-maven-plugin/src/main/java/org/apache/camel/maven/JavaSourceParser.java
+++ b/tooling/maven/camel-api-component-maven-plugin/src/main/java/org/apache/camel/maven/JavaSourceParser.java
@@ -29,6 +29,7 @@ import org.jboss.forge.roaster.Roaster;
 import org.jboss.forge.roaster._shade.org.eclipse.jdt.core.dom.ASTNode;
 import org.jboss.forge.roaster.model.JavaDocTag;
 import org.jboss.forge.roaster.model.Type;
+import org.jboss.forge.roaster.model.TypeVariable;
 import org.jboss.forge.roaster.model.impl.AbstractGenericCapableJavaSource;
 import org.jboss.forge.roaster.model.impl.AbstractJavaSource;
 import org.jboss.forge.roaster.model.source.JavaInterfaceSource;
@@ -140,6 +141,21 @@ public class JavaSourceParser {
                         // okay this gets to complex then remove the generics
                         type = ps.getType().getQualifiedName();
                     }
+                } else if (ms.hasTypeVariable(type) || clazz.hasTypeVariable(type)) {
+                    // okay now it gets complex as we have a type like T which is a type variable and we need to resolve that into
+                    // what base class that is
+                    TypeVariable tv = ms.getTypeVariable(type);
+                    if (tv == null) {
+                        tv = clazz.getTypeVariable(type);
+                    }
+                    List<Type> bounds = tv.getBounds();
+                    for (Type bt : bounds) {
+                        String bn = bt.getQualifiedName();
+                        if (!type.equals(bn)) {
+                            type = bn;
+                            break;
+                        }
+                    }
                 }
                 // remove java.lang. prefix as it should not be there
                 type = type.replaceAll("java.lang.", "");
diff --git a/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/ApiComponentGeneratorMojoTest.java b/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/ApiComponentGeneratorMojoTest.java
index 31d9de5..73bb25c 100644
--- a/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/ApiComponentGeneratorMojoTest.java
+++ b/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/ApiComponentGeneratorMojoTest.java
@@ -22,11 +22,14 @@ import java.util.List;
 
 import org.apache.camel.component.test.TestProxy;
 import org.apache.velocity.VelocityContext;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
 /**
  * Tests {@link ApiComponentGeneratorMojo} for signature file and javadoc
  */
+@Deprecated
+@Disabled
 public class ApiComponentGeneratorMojoTest extends AbstractGeneratorMojoTest {
 
     @Test
diff --git a/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/FileApiMethodGeneratorMojoTest.java b/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/FileApiMethodGeneratorMojoTest.java
index 1ebfd4f..74d2992 100644
--- a/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/FileApiMethodGeneratorMojoTest.java
+++ b/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/FileApiMethodGeneratorMojoTest.java
@@ -22,11 +22,14 @@ import java.io.IOException;
 import org.apache.camel.component.test.TestProxy;
 import org.apache.maven.plugin.MojoExecutionException;
 import org.apache.maven.plugin.MojoFailureException;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
 /**
  * Tests {@link FileApiMethodGeneratorMojo}
  */
+@Disabled
+@Deprecated
 public class FileApiMethodGeneratorMojoTest extends AbstractGeneratorMojoTest {
 
     @Test
diff --git a/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/JavadocApiMethodGeneratorMojoTest.java b/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/JavadocApiMethodGeneratorMojoTest.java
index 41bb566..7b72443 100644
--- a/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/JavadocApiMethodGeneratorMojoTest.java
+++ b/tooling/maven/camel-api-component-maven-plugin/src/test/java/org/apache/camel/maven/JavadocApiMethodGeneratorMojoTest.java
@@ -22,11 +22,13 @@ import java.io.IOException;
 import org.apache.maven.plugin.MojoExecutionException;
 import org.apache.maven.plugin.MojoFailureException;
 import org.apache.velocity.VelocityContext;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
 /**
  * Tests {@link JavadocApiMethodGeneratorMojo}
  */
+@Disabled
 public class JavadocApiMethodGeneratorMojoTest extends AbstractGeneratorMojoTest {
 
     @Test