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* parse script tags in html head for composition * introduced asset class for parsed asset links, added handling of js assets * filter options attribute when rendering asset links into response * Improved equals methods, added missing test, added code comment
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117 changes: 117 additions & 0 deletions
117
src/main/java/com/rewedigital/composer/composing/Asset.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| package com.rewedigital.composer.composing; | ||
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| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.Map.Entry; | ||
| import java.util.Objects; | ||
| import java.util.function.Predicate; | ||
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| /** | ||
| * Describes a <code>link</code> or <code>script</code> tag found in an html <code>head</code> section during parsing of | ||
| * a template or content fragment. | ||
| */ | ||
| class Asset { | ||
| public static class Builder { | ||
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| private final String optionsAttributeName; | ||
| private String type = "link"; | ||
| private boolean selfClosing = false; | ||
| private final Map<String, String> attributes = new HashMap<>(); | ||
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| public Builder(final String optionsAttributeName) { | ||
| this.optionsAttributeName = optionsAttributeName; | ||
| } | ||
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| public Asset.Builder type(final String type) { | ||
| this.type = type; | ||
| return this; | ||
| } | ||
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| public Asset.Builder attribute(final String name, final String value) { | ||
| this.attributes.put(name, value); | ||
| return this; | ||
| } | ||
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| public Asset.Builder selfClosing(final boolean selfClosing) { | ||
| this.selfClosing = selfClosing; | ||
| return this; | ||
| } | ||
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| public boolean isInclude() { | ||
| return optionsContain("include"); | ||
| } | ||
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| private boolean optionsContain(final String option) { | ||
| return attributes.getOrDefault(optionsAttributeName, "").contains(option); | ||
| } | ||
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| public Asset build() { | ||
| return new Asset(this); | ||
| } | ||
| } | ||
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| private final String optionsAttributeName; | ||
| private final String type; | ||
| private final Map<String, String> attributes; | ||
| private final boolean selfClosing; | ||
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| private Asset(final Asset.Builder builder) { | ||
| this.optionsAttributeName = builder.optionsAttributeName; | ||
| this.type = builder.type; | ||
| this.selfClosing = builder.selfClosing; | ||
| this.attributes = new HashMap<>(builder.attributes); | ||
| } | ||
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| public String render() { | ||
| return attributes | ||
| .entrySet() | ||
| .stream() | ||
| .filter(notOptionsAttribute()) | ||
| .reduce(new StringBuilder().append(renderOpen()), | ||
| (builder, e) -> builder.append(e.getKey()) | ||
| .append("=\"") | ||
| .append(e.getValue()) | ||
| .append("\" "), | ||
| (a, b) -> a.append(b)) | ||
| .append(renderClosing()).toString(); | ||
| } | ||
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| private Predicate<? super Entry<String, String>> notOptionsAttribute() { | ||
| return e -> !e.getKey().equals(optionsAttributeName); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hash(attributes, selfClosing, type); | ||
| } | ||
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| @Override | ||
| public boolean equals(final Object obj) { | ||
| if (this == obj) | ||
| return true; | ||
| if (obj == null) | ||
| return false; | ||
| if (getClass() != obj.getClass()) | ||
| return false; | ||
| final Asset other = (Asset) obj; | ||
| return selfClosing == other.selfClosing && | ||
| Objects.equals(attributes, other.attributes) && | ||
| Objects.equals(type, other.type); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "Asset [type=" + type + ", attributes=" + attributes + ", selfClosing=" + selfClosing + "]"; | ||
| } | ||
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| private String renderOpen() { | ||
| return "<" + type + " "; | ||
| } | ||
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| private String renderClosing() { | ||
| if (selfClosing) { | ||
| return "/>"; | ||
| } | ||
| return "></" + type + ">"; | ||
| } | ||
| } |
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